Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6527532 | Apparatus for making a wood-plastic profile | Roger A. Wittenberg, Bruce S. Yarmoska | 2003-03-04 |
| 6385858 | Spacing tool | — | 2002-05-14 |
| 6174396 | Method of manufacturing a trim panel having a handle | Donald Eugene Casteel | 2001-01-16 |
| 5887530 | Fitted furniture covers having built-in drainage troughs | — | 1999-03-30 |
| 5851469 | Process for making a wood-thermoplastic composite | Roger A. Wittenberg | 1998-12-22 |
| 5746958 | Method of producing a wood-thermoplastic composite material | Kjell Gustafsson, Roger A. Wittenberg | 1998-05-05 |
| 5694866 | Outdoor furniture covers and covering methods | — | 1997-12-09 |
| 5582115 | Outdoor furniture covers and covering methods | — | 1996-12-10 |
| 5494542 | Method of making vacuum formed article with integrally joined device | — | 1996-02-27 |
| 5443086 | Umbrella cover assembly | — | 1995-08-22 |
| 5230855 | Method for forming smooth handle | Reza Kargarzadeh | 1993-07-27 |
| 5005265 | Two-piece stud assembly | — | 1991-04-09 |
| 4941603 | Insulated backpack | John Joseph Creamer | 1990-07-17 |
| 4932105 | Self locking attaching system | — | 1990-06-12 |
| 4878827 | Plastic shell for foam moldings | — | 1989-11-07 |
| 4793085 | Electronic firing system for target pistol | Stephen J. Surawski, Larry W. Cowles | 1988-12-27 |
| 4784366 | Pour hole lock system | — | 1988-11-15 |
| 4222808 | Ski manufacturing process | Charles R. Hale, Vincent E. Toloczko, Robert C. Gammons, Frederick J. Eckert | 1980-09-16 |