DT

Douglas E. Trent

AG Assa Abloy High Security Group: 5 patents #2 of 11Top 20%
ML Medeco Security Locks: 3 patents #9 of 49Top 20%
MY Myspace: 1 patents #12 of 29Top 45%
Overall (All Time): #329,791 of 4,157,543Top 8%
14
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
12196000 Cylinder lock with multiple, supplemental locking elements and associated key Mark Benzie, Samuel D. Wood, Peter H. Field, Walter Dannhardt, Thomas Duckwall 2025-01-14
12077983 Key and key blanks operable in vertically and horizontally oriented keyways Thomas Duckwall, Peter H. Field, Clyde T. Roberson 2024-09-03
11624206 Lock cylinder and key with multiple, supplemental locking elements Mark Benzie, Samuel D. Wood, Peter H. Field, Walter Dannhardt, Thomas Duckwall 2023-04-11
11280111 Operating a lock cylinder with multiple, supplemental locking elements Mark Benzie, Samuel D. Wood, Peter H. Field, Walter Dannhardt, Thomas Duckwall 2022-03-22
10253526 Dual function lock cylinder assembly operable by different keys James Bench, Mark Benzie, Lance Schoell 2019-04-09
8528373 Electronic cam assembly Richard G. Hyatt, Jr. 2013-09-10
7212098 Portable security container Richard G. Hyatt, Jr., Hermann Sterzinger 2007-05-01
6891458 Electronic cam assembly Richard G. Hyatt Jr. 2005-05-10
6588243 Electronic cam assembly Richard G. Hyatt, Jr. 2003-07-08
6209367 Electronic cam assembly Richard G. Hyatt, Jr. 2001-04-03
D424491 Promotional display with art accents attachable to a vehicle sun visor Richard G. Hyatt, Jr. 2000-05-09
6005487 Electronic security system with novel electronic T-handle lock Richard G. Hyatt, Jr., Charles E. Hall 1999-12-21
5745044 Electronic security system Richard G. Hyatt, Jr., Charles E. Hall 1998-04-28
5541581 Electronic combination lock security system 1996-07-30