Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5772318 | Portable hand-held concrete and mortar mixer | — | 1998-06-30 |
| 5499029 | Wide band stepped frequency ground penetrating radar | Michael B. Bashforth, Duane Gardner, Douglas Birney Patrick, Tricia A. Lewallen, Sharyn R. Nammath +1 more | 1996-03-12 |
| 5401098 | Portable hand-held concrete and mortar mixer | — | 1995-03-28 |
| 5325095 | Stepped frequency ground penetrating radar | Michael B. Bashforth, Tricia S. Lewallen, Sharyn R. Nammath | 1994-06-28 |
| 4546906 | Chuck valve dispensing means | — | 1985-10-15 |
| D277460 | Caulking tube valve | — | 1985-02-05 |
| 4482116 | Adjustable plastic film bag mouth support | — | 1984-11-13 |
| 4461454 | Caulking tube valve | — | 1984-07-24 |
| D270742 | Finger swivel | — | 1983-09-27 |
| 4273275 | Toy accessory | — | 1981-06-16 |