Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4645085 | Method of enhancing rigidity in a railway car coupler knuckle | Fred C. Kulieke, Jr. | 1987-02-24 |
| 4637518 | Coupler for a railway car coupler assembly | — | 1987-01-20 |
| 4635804 | Yoke for railway car coupler assembly | — | 1987-01-13 |
| 4597499 | Biased pin retainer block for a rotary coupling system | — | 1986-07-01 |
| 4593828 | Rotary railroad car F coupler | Karl J. Jwuc | 1986-06-10 |
| 4428489 | Rotary railroad car F coupler | — | 1984-01-31 |
| 4350256 | Rotary coupler with a specially configured pinhole | Fred C. Kulieke, Jr. | 1982-09-21 |
| 4328900 | Rotary coupler with improved pin bearing | — | 1982-05-11 |
| 4310099 | Rotary connector | — | 1982-01-12 |