Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8339270 | Electrical ground protection device, circuit tester and method of circuit condition detection | Anton D. Pfeiffer | 2012-12-25 |
| 7481026 | Tilt window assembly | — | 2009-01-27 |
| 7136267 | Electrical ground protection device and method | — | 2006-11-14 |
| 6975491 | Electrical ground protection device and method | — | 2005-12-13 |
| 6845593 | Movable window frames having retaining latches | — | 2005-01-25 |
| 6637064 | Drain cleaning apparatus with remotely adjustable feed control | Lee Silverman | 2003-10-28 |
| 6470525 | Drain cleaning apparatus having remote power feed | — | 2002-10-29 |
| 6343398 | Drain cleaning apparatus with feed control | Edward Thomas Gaworski, Jr., Paul Korvick, Norman J. Borgo | 2002-02-05 |
| 6301843 | Muntin joint | — | 2001-10-16 |
| 6243999 | Blow-out prevention mechanism for windows | — | 2001-06-12 |
| D429823 | Front portion of a window component extrusion | — | 2000-08-22 |
| 5033990 | Pulley having spring loaded release mechanism | — | 1991-07-23 |
| 4763445 | Combined slide guide and pivot pin for sash window | — | 1988-08-16 |