Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4992224 | Method of making composite foamed articles using fluid pressure to position a skin layer | Harold W. Swenson | 1991-02-12 |
| 4923657 | Method for making plastic parts | John C. Gembinski, Robert A. Grimmer | 1990-05-08 |
| 4863654 | Method for making foamed articles | Ernest L. Belleville | 1989-09-05 |
| 4793784 | Apparatus for making foamed articles | Ernest L. Belleville | 1988-12-27 |
| 4793793 | Apparatus having fluid pressure plastic skin folding means for making foamed articles | Harold W. Swenson | 1988-12-27 |
| 4784911 | Three-dimensional multi-color plastic parts and method of making same | John C. Gembinski, Robert A. Grimmer | 1988-11-15 |