Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5837179 | Method of making abrasive filaments comprising abrasive-filled thermoplastic elastomer | Richard M. Pihl, Duane J. Hayes, Loren L. Barber, Jr., Dennis G. Welygan, R. Eugene Hardwick | 1998-11-17 |
| 5491025 | Abrasive filaments comprising abrasive-filled thermoplastic elastomer | Richard M. Pihl, Duane J. Hayes, Loren L. Barber, Jr., Dennis G. Welygan, R. Eugene Hardwick | 1996-02-13 |
| 5427595 | Abrasive filaments comprising abrasive-filled thermoplastic elastomer, methods of making same, articles incorporating same and methods of using said articles | Richard M. Pihl, Duane J. Hayes, Loren L. Barber, Jr., Dennis G. Welygan, R. Eugene Hardwick | 1995-06-27 |
| 5011642 | Method of making extruded article | Dennis G. Welygan, Walter W. Pawlikowski | 1991-04-30 |
| 4732770 | Extruded article and method of making the same | Dennis G. Welygan | 1988-03-22 |
| 4634485 | Extruded article and method of making the same | Dennis G. Welygan | 1987-01-06 |
| 4631215 | Extruded article and method of making the same | Dennis G. Welygan | 1986-12-23 |
| 4328274 | Transparent friction surface sheet material | Kent S. Tarbutton | 1982-05-04 |