Top Inventors at Propper Manufacturing Co. All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Helmut A. Heine | 13 |
| 2 | Helmut Rosenbusch | 8 |
| 3 | Otto H. Schmidt | 8 |
| #4 | Thomas A. Augurt | 8 |
| #5 | Irving A. Speelman | 7 |
| #6 | John Dyckman | 4 |
| #7 | Frank E. Platko | 3 |
| #8 | Joseph Nussenbaum | 3 |
| #9 | Ken Summer | 3 |
| #10 | Andrew A. Zwarun | 3 |
| #11 | Peter Hunsinger | 2 |
| #12 | Werner E. Erfurt | 2 |
| #13 | Dennis Kinney | 1 |
| #14 | James R. Hannah | 1 |
| #15 | Jan Raczkowski | 1 |
| #16 | Kenneth A. Summer | 1 |
| #17 | Werner Theissig | 1 |
| #18 | William Fitzgerald | 1 |
| #19 | Rudolf Kratzer | 1 |
| #20 | Seymour Schuman | 1 |
| #21 | Louise Macaro | 1 |