TREA

L. C. Derek Chamberlain

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  • Colorado Springs, CO, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Power feed adapter
    • Patent number 6,042,417
    • Issue date Mar 28, 2000
    • Schlage Lock Company
    • Frederick M. Hensley
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Lockset with motorized system for locking and unlocking
    • Patent number 6,038,896
    • Issue date Mar 21, 2000
    • Schlage Lock Company
    • L. C. Derek Chamberlain
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Interlocking dead bolt with projecting pins
    • Patent number 5,794,991
    • Issue date Aug 18, 1998
    • Schlage Lock Company
    • Jon M. Smallegan
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Electrical transmission path for electrical and electro-mechanical...
    • Patent number 5,791,178
    • Issue date Aug 11, 1998
    • Schlage Lock Company
    • L. C. Derek Chamberlain
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Lockset with motorized system for locking and unlocking
    • Patent number 5,782,118
    • Issue date Jul 21, 1998
    • Schlage Lock Company
    • L. C. Derek Chamberlain
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Lock platform
    • Patent number 5,695,227
    • Issue date Dec 9, 1997
    • Schlage Lock Company
    • Jon M. Smallegan
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Deadbolt latch assembly
    • Patent number 5,683,127
    • Issue date Nov 4, 1997
    • Schlage Lock Company
    • L. C. Derek Chamberlain
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Dead bolt actuating assembly
    • Patent number 5,676,407
    • Issue date Oct 14, 1997
    • Schlage Lock Company
    • Jon M. Smallegan
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Door latch operating assembly
    • Patent number 5,492,380
    • Issue date Feb 20, 1996
    • Schlage Lock Company
    • Jon M. Smallegan
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Door handle mounting assembly
    • Patent number 5,476,295
    • Issue date Dec 19, 1995
    • Schlage Lock Company
    • Jon M. Smallegan
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES