Top Inventors at Shepherd Products U.S. All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Michael H. Estkowski | 10 |
| 2 | Christopher G. Estkowski | 8 |
| 3 | Jerome Caruso | 4 |
| #4 | Robert M. Shane | 4 |
| #5 | Lennard V. Lastuck | 3 |
| #6 | Don E. Minor | 2 |
| #7 | Kenneth E. Cooper | 2 |
| #8 | Ludovic A. Perl | 2 |
| #9 | Christopher F. Estkowski | 1 |
| #10 | David Eggleston | 1 |
| #11 | John T. Atwood | 1 |
| #12 | Loris Miotto | 1 |
| #13 | Robert S. Doumani | 1 |
| #14 | Michael Gaishin | 1 |