Issued Patents All Time
Showing 26–35 of 35 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4966399 | Lock set with spindle lock | — | 1990-10-30 |
| 4957315 | Auxiliary lock with an extensible device | — | 1990-09-18 |
| 4890871 | Tubular door lock with an adjustable device for setting the dead bolt | — | 1990-01-02 |
| 4837427 | Manually codeable cards for card readers | — | 1989-06-06 |
| 4820330 | Structure for controlling the dead bolt used in an electronic lock | — | 1989-04-11 |
| 4767140 | Tubular lock with an adjustable device for two-size setting | — | 1988-08-30 |
| 4752090 | Auxiliary lock with an extensible device | — | 1988-06-21 |
| 4729585 | Trumpet door lock with an adjustable dead bolt | — | 1988-03-08 |
| 4687239 | Tubular door lock with an adjustable device for setting the dead bolt | — | 1987-08-18 |
| 4662665 | Auxiliary lock with an extensible device | — | 1987-05-05 |