Thomas Duckwall

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Roanoke, VA, US

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Patents Grantslast 30 patents

Information Patent Grant
Cylinder lock with multiple, supplemental locking elements and asso...
- Patent number 12,196,000
- Issue date Jan 14, 2025
- ASSA ABLOY HIGH SECURITY GROUP INC.
- Mark Benzie
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Lock cylinder and key with multiple, supplemental locking elements
- Patent number 11,624,206
- Issue date Apr 11, 2023
- ASSA ABLOY HIGH SECURITY GROUP INC.
- Mark Benzie
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Operating a lock cylinder with multiple, supplemental locking elements
- Patent number 11,280,111
- Issue date Mar 22, 2022
- ASSA ABLOY HIGH SECURITY GROUP INC.
- Mark Benzie
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Key blank, key and master keying system
- Patent number 6,945,082
- Issue date Sep 20, 2005
- Medeco Security Locks, Inc.
- Peter H. Field
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Removable core lock
- Patent number 6,012,311
- Issue date Jan 11, 2000
- Medeco Security Locks, Inc.
- Thomas Edwin Duckwall
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES

Patents Applicationslast 30 patents

Information Patent Application
CYLINDER LOCK WITH MULTIPLE, SUPPLEMENTAL LOCKING ELEMENTS AND ASSO...
- Publication number 20230313562
- Publication date Oct 5, 2023
- ASSA ABLOY High Security Group Inc.
- Mark BENZIE
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Application
OPERATING A LOCK CYLINDER WITH MULTIPLE, SUPPLEMENTAL LOCKING ELEMENTS
- Publication number 20210310277
- Publication date Oct 7, 2021
- ASSA ABLOY High Security Group Inc.
- Mark BENZIE
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Application
LOCK CYLINDER AND KEY WITH MULTIPLE, SUPPLEMENTAL LOCKING ELEMENTS
- Publication number 20210102402
- Publication date Apr 8, 2021
- ASSA ABLOY High Security Group Inc.
- Mark BENZIE
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Application
Key blank, key and master keying system
- Publication number 20030024287
- Publication date Feb 6, 2003
- Peter H. Field
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES