Listowel, CA ranks #20,966 worldwide for total patents filed all time, with 61 patents from 19 inventors. Leading employers of inventors based in Listowel, CA include 1708828 Ontario, Broda Enterprises, Invensys Systems.
Showing 1–19 of 19 inventors
| Rank ↑ | Inventor ↕ | Primary Company ↕ | Patents ↕ |
|---|---|---|---|
| 1 | Oscar Frey | 1708828 Ontario | 16 |
| 2 | Ian Brotherston | Broda Enterprises | 11 |
| 3 | Ryan Earl Frey | 1708828 Ontario | 10 |
| #4 | Juan Manuel Garcia Peralta | Invensys Systems | 5 |
| #5 | Vivian G. Power | Electrovert | 3 |
| #6 | Stephen J. Housser | — | 2 |
| #6 | Chris Anthony Raben | 1708828 Ontario | 2 |
| #8 | Catherine Y. O'Hara | — | 1 |
| #8 | Robert M. Geroux | — | 1 |
| #8 | Edward Reist | — | 1 |
| #8 | James R. Eagle | — | 1 |
| #8 | Darrell Shartner | — | 1 |
| #8 | Matthew Oliver | 1 | |
| #8 | John VERWEY | — | 1 |
| #8 | Anne Broadbent | Quantum Valley Investment Fund Lp | 1 |
| #8 | Amber Monique Ann Groen | — | 1 |
| #8 | Julia Scarlet Jackson | — | 1 |
| #8 | Gordon A. J. Chiddicks | — | 1 |
| #8 | Hedde DeBoer | — | 1 |