Showing 1–3 of 3 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | William K. Hilfiker | Hilfiker Pipe Co. | 3 |
| 2 | Harold O. Hilfiker | Hilfiker Pipe Co. | 2 |
| 2 | William B. Hilfiker | Hilfiker Pipe Co. | 2 |
Part of California
7 patents · 3 inventors · 0.3/1k pop.
Ranked #3,004 of 15,417 cities Top 20%
Showing 1–3 of 3 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | William K. Hilfiker | Hilfiker Pipe Co. | 3 |
| 2 | Harold O. Hilfiker | Hilfiker Pipe Co. | 2 |
| 2 | William B. Hilfiker | Hilfiker Pipe Co. | 2 |
Part of California