Issued Patents All Time
Showing 26–50 of 54 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5518386 | System for injection molding utilizing a pressurizing fluid source within a chamber in the mold | — | 1996-05-21 |
| 5439365 | Apparatus for fluid compression of injection molded plastic material | — | 1995-08-08 |
| 5344596 | Method for fluid compression of injection molded plastic material | — | 1994-09-06 |
| 5324189 | Apparatus for injection molding of a plastic article having a hollow rib | — | 1994-06-28 |
| 5232711 | Apparatus for injection molding with pressurized fluid assist in the mold | — | 1993-08-03 |
| 5225141 | Process for injection molding a hollow plastic article | — | 1993-07-06 |
| 5186884 | Method of injection molding with pressurized fluid assist | — | 1993-02-16 |
| 5137680 | Method of injection molding utilizing pressurized fluid source within a chamber in a mold | — | 1992-08-11 |
| 5131226 | Variable volume reservoir and method for its use | — | 1992-07-21 |
| 5114660 | Method of injecting molding | — | 1992-05-19 |
| 5110533 | Method for the use of gas assistance in the molding of plastic articles to enhance surface quality | — | 1992-05-05 |
| 5098637 | Process for injection molding and hollow plastic article produced thereby | — | 1992-03-24 |
| 5069858 | Method for the use of gas assistance in the molding of plastic articles | — | 1991-12-03 |
| 5032345 | Method of injection molding with pressurized-fluid assist and variable-volume reservoir | — | 1991-07-16 |
| 5028377 | Method for injection molding plastic article with gas-assistance | — | 1991-07-02 |
| 4948547 | Method for the use of gas assistance in the molding of plastic articles | — | 1990-08-14 |
| 4944910 | Method of molding thermoplastic material | — | 1990-07-31 |
| 4943407 | Method of and apparatus for injection molding with pressurized fluid assist | — | 1990-07-24 |
| 4855094 | Method for the injection molding of plastic articles using fluid pressure | — | 1989-08-08 |
| 4824732 | Process and apparatus for injection moulding and mouldings produced thereby | Geoffery D. Cahan | 1989-04-25 |
| 4781554 | Apparatus for the injection molding of thermoplastics | — | 1988-11-01 |
| 4750409 | Apparatus for compressing a gas | — | 1988-06-14 |
| 4555225 | Apparatus for making a twin-wall, internally corrugated plastic structural part with a smooth non-cellular skin | — | 1985-11-26 |
| 4474717 | Method of making a twin-wall internally corrugated plastic structural part with a smooth non-cellular skin | — | 1984-10-02 |
| 4390332 | Apparatus for injection molding of parts from foam plastics material and/or from solid plastics material | — | 1983-06-28 |