Issued Patents All Time
Showing 26–36 of 36 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D435429 | Window latch | William Anthony Wangler | 2000-12-26 |
| 6139074 | Window locking system | William Anthony Wangler | 2000-10-31 |
| 6088842 | Drain assembly for preventing hair entanglement in a pool or hot tub | — | 2000-07-18 |
| D421295 | Drain construction | — | 2000-02-29 |
| D421102 | Drain construction | — | 2000-02-22 |
| D421101 | Drain construction | — | 2000-02-22 |
| D410073 | Drain apparatus | — | 1999-05-18 |
| 5894609 | Safety system for multiple drain pools | — | 1999-04-20 |
| 5870317 | Remote and proximal interlock testing mechanisms and testing systems | Theodore Liber | 1999-02-09 |
| 5716630 | Pesticidal tablet formulations | Kang Lin, Derek Stonich | 1998-02-10 |
| 4962942 | Minimum energy curb negotiating wheelchair | Steven R. Schmid, Robert D. Kaplan | 1990-10-16 |