Trademarks & Patents

Trademarks

+ FILTERz, ACT, CenterVision, ColorTrip, DeepScan, ExitPoint, FILTERz, Leak Alert, LoLevel, MetalliScanner, MetalliWarning, MultiScanner, One Touch, OneStep, SpotLite, StudSensor, SuperScan, Target Control, TARGETz, TC, TruCal, WireWarning, and Zircon are trademarks or registered trademarks of Zircon Corporation.

Patents

  • Stud Finders

    SuperScan​® ID

    U.S. Patents 8581724, 8604771, 9475185, 11131786, Patents Pending. China Patent 102187372.

  • Stud Finders

    Wood Stud SuperScan​®

    U.S. Patents 8581724, 8604771, 9475185, 9589431, 11131786. Canadian Patents 2554226, 2557197, 2739891. Japanese Patent 5646496. German Patents 602005012941.3, 602005053056.8. French Patents 1721191, 1740981. U.K. Patents 1721191, 1740981. China Patent 102187372. Patents Pending

  • Stud Finders

    SuperScan​® K1

    U.S. Patents 8581724, 8604771, 9475185, 9508244, 9589431, 11131786, D861513, D861514, D861521, D861522. Canadian Patents 2554226, 2557197, 2739891. Japanese Patent 5646496. German Patents 602005012941.3, 602005053056.8. French Patents 1721191, 1740981. U.K. Patents 1721191, 1740981. China Patent 102187372. Patents Pending

  • Zircon SuperScan K2 Advanced Wall Scanner
    Stud Finders

    SuperScan® K2

    U.S. Patents 8581724, 8604771, 9475185, 9508244, 9589431, 11131786, D861513, D861514, D861521, D861522. Canadian Patents 2554226, 2557197, 2562927, 2739891. Japanese Patent 5646496. German Patents 602005012941.3, 602005053056.8, 602005055741.5. French Patents 1721191, 1740981, 1745310. U.K. Patents 1721191, 1740981, 1745310. China Patent 102187372. Patents Pending

  • Zircon SuperScan K3
    Stud Finders

    SuperScan® K3

    U.S. Patents 8581724, 8604771, 9475185, 9508244, 9589431, 11131786, D861513, D861514, D861521, D861522. Canadian Patents 2554226, 2557197, 2562927, 2739891. Japanese Patent 5646496. German Patents 602005012941.3, 602005053056.8, 602005055741.5. French Patents 1721191, 1740981, 1745310. U.K. Patents 1721191, 1740981, 1745310. China Patent 102187372. Patents Pending

  • Zircon SuperScan K4 advanced wall scanner and stud finder
    Stud Finders

    SuperScan​® K4

    U.S. Patents 8581724, 8604771, 9475185, 9508244, 9589431, 11131786, D861513, D861514, D861521, D861522. Canadian Patents 2554226, 2557197, 2562927, 2739891. Japanese Patent 5646496. German Patents 602005012941.3, 602005053056.8, 602005055741.5. French Patents 1721191, 1740981, 1745310. U.K. Patents 1721191, 1740981, 1745310. China Patent 102187372. Patents Pending

  • SuperScan M1 Front
    Stud Finders

    SuperScan​® M1

    U.S. Patents 8581724, 8604771, 9475185, 9508244, 9589431, 11131786, D950554, D950555, D950556. Canadian Patents 2554226, 2557197, 2739891. Japanese Patent 5646496. German Patents 602005012941.3, 602005053056.8. French Patents 1721191, 1740981. U.K. Patents 1721191, 1740981. EU Registered Designs 008531453-0001, 008531461-0001, 008532840-0001. China Patent 102187372. Patents Pending

  • SuperScan M2 Front
    Stud Finders

    SuperScan® M2

    U.S. Patents 8581724, 8604771, 9475185, 9508244, 9589431, 11131786, D950554, D950555, D950556. Canadian Patents 2554226, 2557197, 2562927, 2739891. Japanese Patent 5646496. German Patents 602005012941.3, 602005053056.8, 602005055741.5. French Patents 1721191, 1740981, 1745310. U.K. Patents 1721191, 1740981, 1745310. EU Registered Designs 008531453-0001, 008531461-0001, 008532840-0001. China Patent 102187372. Patents Pending

  • SuperScan M3 Front
    Stud Finders

    SuperScan® M3

    U.S. Patents 8581724, 8604771, 9475185, 9508244, 9589431, 11131786, D950554, D950555, D950556. Canadian Patents 2554226, 2557197, 2562927, 2739891. Japanese Patent 5646496. German Patents 602005012941.3, 602005053056.8, 602005055741.5. French Patents 1721191, 1740981, 1745310. U.K. Patents 1721191, 1740981, 1745310. EU Registered Designs 008531453-0001, 008531461-0001, 008532840-0001. China Patent 102187372. Patents Pending

  • SuperScan M4 Front
    Stud Finders

    SuperScan® M4

    U.S. Patents 8581724, 8604771, 9475185, 9508244, 9589431, 11131786, D950554, D950555, D950556. Canadian Patents 2554226, 2557197, 2562927, 2739891. Japanese Patent 5646496. German Patents 602005012941.3, 602005053056.8, 602005055741.5. French Patents 1721191, 1740981, 1745310. U.K. Patents 1721191, 1740981, 1745310. EU Registered Designs 008531453-0001, 008531461-0001, 008532840-0001. China Patent 102187372. Patents Pending

  • Zircon StudSensor HD25
    Stud Finders

    StudSensor™ HD25

    U.S. Patents 8581724, 8604771, 9475185, 9508244, 9589431, D707575, D708923. Canadian Patent 2739891. Japanese Patent 5646496. E.U. Patents Pending. China Patent 102187372.

  • Zircon StudSensor HD35
    Stud Finders

    StudSensor™ HD35

    U.S. Patents 8581724, 8604771, 9475185, 9508244, 9589431, D707575, D708923. Canadian Patent 2739891. Japanese Patent 5646496. E.U. Patents Pending. China Patent 102187372.

  • Zircon HD 55
    Stud Finders

    StudSensor™ HD55

    U.S. Patents 8581724, 8604771, 9475185, 9508244, 9589431, D707143, D707575, D708923. Canadian Patent 2739891. Japanese Patent 5646496. E.U. Patents Pending. China Patent 102187372.

  • Stud Finders

    StudSensor™ HD55 Picture Hanging Kit

    U.S. Patents 8581724, 8604771, 9475185, 9508244, 9589431, D707143, D707575, D708923. Canadian Patent 2739891. Japanese Patent 5646496. E.U. Patents Pending. China Patent 102187372.

  • Zircon StudSesnor HD70
    Stud Finders

    StudSensor™ HD70 OneStep®

    U.S. Patents 8581724, 8604771, 9475185, 9508244, 9589431, D707143, D708923. Canadian Patents 2554226, 2557197, 2562927, 2739891. Japanese Patent 5646496. German Patents 602005012941.3, 602005053056.8, 602005055741.5. French Patents 1721191, 1740981, 1745310. U.K. Patents 1721191, 1740981, 1745310. E.U. Patents Pending. China Patent 102187372.

  • Zircon MultiScanner HD800
    Stud Finders
    Multiscanner

    MultiScanner™ HD800 OneStep®

    U.S. Patents 8581724, 8604771, 9475185, 9508244, 9589431, D708923, D724968. Canadian Patents 2554226, 2557197, 2562927, 2739891. Japanese Patent 5646496. German Patents 602005012941.3, 602005053056.8, 602005055741.5. French Patents 1721191, 1740981, 1745310. U.K. Patents 1721191, 1740981, 1745310. E.U. Patents Pending. China Patent 102187372.

  • Zircon MultiScanner HD900
    Stud Finders
    Multiscanner

    MultiScanner™ HD900 OneStep®

    U.S. Patents 8581724, 8604771, 9475185, 9508244, 9589431, D708923, D724968. Canadian Patents 2554226, 2557197, 2562927, 2739891. Japanese Patent 5646496. German Patents 602005012941.3, 602005053056.8, 602005055741.5. French Patents 1721191, 1740981, 1745310. U.K. Patents 1721191, 1740981, 1745310. E.U. Patents Pending. China Patent 102187372.

  • Zircon HD900C Multiscanner
    Stud Finders
    Multiscanner

    MultiScanner™ HD900c OneStep®

    U.S. Patents 8581724, 8604771, 9475185, 9508244, 9589431, D708923, D724968. Canadian Patents 2554226, 2557197, 2562927, 2739891. Japanese Patent 5646496. German Patents 602005012941.3, 602005053056.8, 602005055741.5. French Patents 1721191, 1740981, 1745310. U.K. Patents 1721191, 1740981, 1745310. E.U. Patents Pending. China Patent 102187372.

  • SuperScan H1 Front
    Stud Finders

    SuperScan® H1

    U.S. Patents 8581724, 8604771, 9475185, 9508244, 9589431, 11131786, D950554, D950555, D950556. Canadian Patents 2554226, 2557197, 2739891. Japanese Patent 5646496. German Patents 602005012941.3, 602005053056.8. French Patents 1721191, 1740981. U.K. Patents 1721191, 1740981. EU Registered Designs 008531453-0001, 008531461-0001, 008532840-0001. China Patent 102187372. Patents Pending

  • SuperScan H2 Front
    Stud Finders

    SuperScan® H2

    U.S. Patents 8581724, 8604771, 9475185, 9508244, 9589431, 11131786, D950554, D950555, D950556. Canadian Patents 2554226, 2557197, 2562927, 2739891. Japanese Patent 5646496. German Patents 602005012941.3, 602005053056.8, 602005055741.5. French Patents 1721191, 1740981, 1745310. U.K. Patents 1721191, 1740981, 1745310. EU Registered Designs 008531453-0001, 008531461-0001, 008532840-0001. China Patent 102187372. Patents Pending

  • SuperScan H3 Front
    Stud Finders

    SuperScan® H3

    U.S. Patents 8581724, 8604771, 9475185, 9508244, 9589431, 11131786, D950554, D950555, D950556. Canadian Patents 2554226, 2557197, 2562927, 2739891. Japanese Patent 5646496. German Patents 602005012941.3, 602005053056.8, 602005055741.5. French Patents 1721191, 1740981, 1745310. U.K. Patents 1721191, 1740981, 1745310. EU Registered Designs 008531453-0001, 008531461-0001, 008532840-0001. China Patent 102187372. Patents Pending

  • SuperScan H4 Front
    Stud Finders

    SuperScan® H4

    U.S. Patents 8581724, 8604771, 9475185, 9508244, 9589431, 11131786, D950554, D950555, D950556. Canadian Patents 2554226, 2557197, 2562927, 2739891. Japanese Patent 5646496. German Patents 602005012941.3, 602005053056.8, 602005055741.5. French Patents 1721191, 1740981, 1745310. U.K. Patents 1721191, 1740981, 1745310. EU Registered Designs 008531453-0001, 008531461-0001, 008532840-0001. China Patent 102187372. Patents Pending

  • Zircon StudSensor L20
    Stud Finders

    StudSensor™ L20

    U.S. Patents 8581724, 8604771, 9475185, 9589431. Canadian Patent 2739891. Japanese Patent 5646496. E.U. Patent Pending. China Patent 102187372.

  • Stud Finders

    StudSensor™ L30

    U.S. Patents 8581724, 8604771, 9475185, 9589431. Canadian Patent 2739891. Japanese Patent 5646496. E.U. Patent Pending. China Patent 102187372.

  • Zircon StudSensor L40
    Stud Finders

    StudSensor™ L40

    U.S. Patents 8581724, 8604771, 9475185, 9589431. Canadian Patent 2739891. Japanese Patent 5646496. E.U. Patent Pending. China Patent 102187372.

  • Zircon StudSensor L50
    Stud Finders

    StudSensor™ L50

    U.S. Patents 8581724, 8604771, 9475185, 9589431. Canadian Patent 2739891. Japanese Patent 5646496. E.U. Patent Pending. China Patent 102187372.

  • Zircon StudSensor L70
    Stud Finders

    StudSensor™ L70 OneStep®

    U.S. Patents 8581724, 8604771, 9475185, 9589431, D726042, and Patent Pending. Canadian Patents 2554226, 2557197, 2562927, 2739891. Japanese Patent 5646496. German Patents 602005012941.3, 602005053056.8, 602005055741.5. French Patents 1721191, 1740981, 1745310. U.K. Patents 1721191, 1740981, 1745310. E.U. Patent Pending. China Patent 102187372.

  • Zircon L350 Center Finder
    Stud Finders
    Multiscanner

    MultiScanner™ L350 OneStep®

    U.S. Patents 8581724, 8604771, 9475185, 9589431, D726042, and Patent Pending. Canadian Patents 2554226, 2557197, 2562927, 2739891. Japanese Patent 5646496. German Patents 602005012941.3, 602005053056.8, 602005055741.5. French Patents 1721191, 1740981, 1745310. U.K. Patents 1721191, 1740981, 1745310. E.U. Patent Pending. China Patent 102187372.

  • Zircon MultiScanner L550
    Stud Finders
    Multiscanner

    MultiScanner™ L550 OneStep®

    U.S. Patents 8581724, 8604771, 9475185, 9589431, D726042. Canadian Patents 2554226, 2557197, 2562927, 2739891. Japanese Patent 5646496. German Patents 602005012941.3, 602005053056.8, 602005055741.5. French Patents 1721191, 1740981, 1745310. U.K. Patents 1721191, 1740981, 1745310. E.U. Patent Pending. China Patent 102187372.

  • SuperScan W1
    Stud Finders

    SuperScan® W1

    U.S. Patents 8581724, 8604771, 9475185, 9508244, 9589431, 11131786, D950554, D950555, D950556. Canadian Patents 2554226, 2557197, 2739891. Japanese Patent 5646496. German Patents 602005012941.3, 602005053056.8. French Patents 1721191, 1740981. U.K. Patents 1721191, 1740981. EU Registered Designs 008531453-0001, 008531461-0001, 008532840-0001. China Patent 102187372. Patents Pending

  • SuperScan W2
    Stud Finders

    SuperScan® W2

    U.S. Patents 8581724, 8604771, 9475185, 9508244, 9589431, 11131786, D950554, D950555, D950556. Canadian Patents 2554226, 2557197, 2562927, 2739891. Japanese Patent 5646496. German Patents 602005012941.3, 602005053056.8, 602005055741.5. French Patents 1721191, 1740981, 1745310. U.K. Patents 1721191, 1740981, 1745310. EU Registered Designs 008531453-0001, 008531461-0001, 008532840-0001. China Patent 102187372. Patents Pending

  • SuperScan W3
    Stud Finders

    SuperScan® W3

    U.S. Patents 8581724, 8604771, 9475185, 9508244, 9589431, 11131786, D950554, D950555, D950556. Canadian Patents 2554226, 2557197, 2562927, 2739891. Japanese Patent 5646496. German Patents 602005012941.3, 602005053056.8, 602005055741.5. French Patents 1721191, 1740981, 1745310. U.K. Patents 1721191, 1740981, 1745310. EU Registered Designs 008531453-0001, 008531461-0001, 008532840-0001. China Patent 102187372. Patents Pending

  • SuperScan W4
    Stud Finders

    SuperScan® W4

    U.S. Patents 8581724, 8604771, 9475185, 9508244, 9589431, 11131786, D950554, D950555, D950556. Canadian Patents 2554226, 2557197, 2562927, 2739891. Japanese Patent 5646496. German Patents 602005012941.3, 602005053056.8, 602005055741.5. French Patents 1721191, 1740981, 1745310. U.K. Patents 1721191, 1740981, 1745310. EU Registered Designs 008531453-0001, 008531461-0001, 008532840-0001. China Patent 102187372. Patents Pending

  • Zircon StudSensor Edge
    Stud Finders

    StudSensor™ EDGE

    U.S. Patents 8581724, 8604771, 9475185, 9589431. Canadian Patent 2739891. Japanese Patent 5646496. E.U. Patent Pending. China Patent 102187372.

  • Zircon StudSensor e30
    Stud Finders

    StudSensor™ e30

    U.S. Patents 8581724, 8604771, 9475185, 9589431. Canadian Patent 2739891. Japanese Patent 5646496. E.U. Patent Pending. China Patent 102187372.

  • Zircon StudSensor e50
    Stud Finders

    StudSensor™ e50

    U.S. Patents 8581724, 8604771, 9475185, 9589431. Canadian Patent 2739891. Japanese Patent 5646496. E.U. Patent Pending. China Patent 102187372.

  • Zircon StudSensor i65
    Stud Finders

    StudSensor™ i65 OneStep®

    Canadian Patents 2554226, 2557197, 2562927. German Patents 602005012941.3, 602005053056.8, 602005055741.5. French Patents 1721191, 1740981, 1745310. U.K. Patents 1721191, 1740981, 1745310.

  • Zircon Multiscanner i520
    Stud Finders
    Multiscanner

    MultiScanner™ i520 OneStep®

    Canadian Patents 2554226, 2557197, 2562927. German Patents 602005012941.3, 602005053056.8, 602005055741.5. French Patents 1721191, 1740981, 1745310. U.K. Patents 1721191, 1740981, 1745310.

  • Stud Finders

    SuperScan® A1

    U.S. Patents 8581724, 8604771, 9475185, 9508244, 9589431, 11131786, D950554, D950555, D950556. Canadian Patents 2554226, 2557197, 2739891. Japanese Patent 5646496. German Patents 602005012941.3, 602005053056.8. French Patents 1721191, 1740981. U.K. Patents 1721191, 1740981. EU Registered Designs 008531453-0001, 008531461-0001, 008532840-0001. China Patent 102187372. Patents Pending

  • Stud Finders

    SuperScan® A2

    U.S. Patents 8581724, 8604771, 9475185, 9508244, 9589431, 11131786, D950554, D950555, D950556. Canadian Patents 2554226, 2557197, 2562927, 2739891. Japanese Patent 5646496. German Patents 602005012941.3, 602005053056.8, 602005055741.5. French Patents 1721191, 1740981, 1745310. U.K. Patents 1721191, 1740981, 1745310. EU Registered Designs 008531453-0001, 008531461-0001, 008532840-0001. China Patent 102187372. Patents Pending

  • Zircon StudSensor A100
    Stud Finders

    StudSensor™ A100

    U.S. Patents 8581724, 8604771, 9475185, 9508244, 9589431. Canadian Patent 2739891. Japanese Patent 5646496. E.U. Patents Pending. China Patent 102187372.

  • Zircon_StudSensor A150
    Stud Finders

    StudSensor™ A150

    U.S. Patents 8581724, 8604771, 9475185, 9508244, 9589431. Canadian Patents 2554226, 2557197, 2562927, 2739891. Japanese Patent 5646496. German Patents 602005012941.3, 602005053056.8, 6020050557541.5. French Patents 1721191, 1740981, 1745310. U.K. Patents 1721191, 1740981, 1745310. E.U. Patents Pending. China Patent 102187372.

  • Zircon Multiscanner A200
    Stud Finders
    Multiscanner

    MultiScanner™ A200

    U.S. Patents 8581724, 8604771, 9475185, 9508244, 9589431. Canadian Patents 2554226, 2557197, 2562927, 2739891. Japanese Patent 5646496. German Patents 602005012941.3, 602005053056.8, 6020050557541.5. French Patents 1721191, 1740981, 1745310. U.K. Patents 1721191, 1740981, 1745310. E.U. Patents Pending. China Patent 102187372.

  • Zircon MultiScanner A250
    Stud Finders
    Multiscanner

    MultiScanner™ A250

    U.S. Patents 8581724, 8604771, 9475185, 9508244, 9589431. Canadian Patents 2554226, 2557197, 2562927, 2739891. Japanese Patent 5646496. German Patents 602005012941.3, 602005053056.8, 6020050557541.5. French Patents 1721191, 1740981, 1745310. U.K. Patents 1721191, 1740981, 1745310. E.U. Patents Pending. China Patent 102187372.

  • Zircon Multiscanner A250C
    Stud Finders
    Multiscanner

    MultiScanner™ A250c

    U.S. Patents 8581724, 8604771, 9475185, 9508244, 9589431. Canadian Patents 2554226, 2557197, 2562927, 2739891. Japanese Patent 5646496. German Patents 602005012941.3, 602005053056.8, 6020050557541.5. French Patents 1721191, 1740981, 1745310. U.K. Patents 1721191, 1740981, 1745310. E.U. Patents Pending. China Patent 102187372.

  • Zircon Pro25 StudSensor
    Stud Finders

    StudSensor™ Pro25

    U.S. Patents 8581724, 8604771, 9475185, 9589431. Canadian Patent 2739891. Japanese Patent 5646496. E.U. Patent Pending. China Patent 102187372.

  • Zircon Pro35 Edge finder
    Stud Finders

    StudSensor™ Pro35

    U.S. Patents 8581724, 8604771, 9475185, 9589431. Canadian Patent 2739891. Japanese Patent 5646496. E.U. Patent Pending. China Patent 102187372.

  • Zircon StudSensor Pro45
    Stud Finders

    StudSensor™ Pro45

    U.S. Patents 8581724, 8604771, 9475185, 9589431. Canadian Patent 2739891. Japanese Patent 5646496. E.U. Patent Pending. China Patent 102187372.

  • Zircon StudSensor Pro55
    Stud Finders

    StudSensor™ Pro55

    U.S. Patents 8581724, 8604771, 9475185, 9589431. Canadian Patent 2739891. Japanese Patent 5646496. E.U. Patent Pending. China Patent 102187372.

  • Zircon StudSensor wm5
    Stud Finders

    StudSensor™ WM5

    U.S. Patents 8581724, 8604771, 9475185, 9589431. Canadian Patent 2739891. Japanese Patent 5646496. E.U. Patent Pending. China Patent 102187372.

  • Zircon StudSensor e40
    Stud Finders

    StudSensor™ e40

    U.S. Patents 8581724, 8604771, 9475185, 9589431. Canadian Patent 2739891. Japanese Patent 5646496. E.U. Patent Pending. China Patent 102187372.

  • Zircon StudSensor 70
    Stud Finders

    StudSensor™ 70

    Canadian Patents 2554226, 2557197, 2562927. German Patents 602005012941.3, 602005053056.8, 602005055741.5. French Patents 1721191, 1740981, 1745310. U.K. Patents 1721191, 1740981, 1745310.

  • Zircon Multiscanner540
    Stud Finders
    Multiscanner

    MultiScanner™ 540

    Canadian Patent 2554226. German Patent 602005053056.8. French Patent 1721191. U.K. Patent 1721191.

  • Zircon Multiscannner 740
    Stud Finders
    Multiscanner

    MultiScanner™ 740

    U.S. Patent 7212014. Canadian Patents 2554226, 2557197, 2562927. German Patents 602005012941.3, 602005053056.8, 602005055741.5. French Patents 1721191, 1740981, 1745310. U.K. Patents 1721191, 1740981, 1745310.

  • Zircon Multiscanner X85
    Stud Finders
    Multiscanner

    MultiScanner™ x85

    U.S. Patents 8334623, 8581724, 8604771, 8823394, 9035662, 9475185, 9589431, D706148. Canadian Patent 2739891. Japanese Patent 5646496. German Patents 102008035627.1, 502010016530.4, and Patent Pending. French Patent 2494382. U.K. Patent 2494382. China Patent 102187372.

  • Zircon MultiScanner i320
    Stud Finders
    Multiscanner

    MultiScanner™ i320 OneStep®

    Canadian Patents 2554226, 2557197, 2562927. German Patents 602005012941.3, 602005053056.8, 602005055741.5. French Patents 1721191, 1740981, 1745310. U.K. Patents 1721191, 1740981, 1745310.

  • Metal Detectors

    MetalliScanner® m60c

    U.S. Patents 8581724, 9589431. Canadian Patent 2739891. Japanese Patent 5646496. China Patent 102187372. E.U. Patent Pending.

  • Zircon M40 Metalliscanner
  • Metal Detectors

    MetalliScanner® MT 7

    U.S. Patents 8604771, 9409289, 9475185. Japanese Patent 6472105. China Patent 104884210.

  • Metal Detectors

    MetalliScanner® MT X

    U.S. Patents 8604771, 9409289, 9475185, 10234589, 10393907, 10712468, D706147. Canadian Patent Pending. Japanese Patent 6472105. German Patent 102009021804.1 and Patents Pending. European Patent 3259622. China Patent 104884210.

  • Leak Alert WiFi Water Detector
  • Electrical Tools

    ElectriScanner™ e60c

    U.S. Patents 8581724, 9589431. Canadian Patent 2739891. Japanese Patent 5646496. China Patent 102187372. E.U. Patent Pending.

  • Zircon XL300 Drill Guide
    Drill Guides

    ExitPoint® XL300

    U.S. Patents 7570041, 8604771, D724965. Canadian Patent 2629929. French Patent 1740981. U.K. Patent 1740981.

  • Drill Guides

    ExitPoint® XL500

    US Patents 7570041, 8604771, 9475185. CA Patents 2557197, 2562927, 2629929. EP Patents 1740981, 1745310.