Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5221540 | Extrusion head with adjustable view stripe positioning | — | 1993-06-22 |
| 5204120 | Intermittent multi-layer multi-parison extrusion head | — | 1993-04-20 |
| 5114333 | Die head for plastic with barrier forming material | — | 1992-05-19 |
| 5055022 | Multiple parison extrusion device for producing laminar articles | — | 1991-10-08 |
| 5046938 | Improved multiple layer die head with adjustable gaps | — | 1991-09-10 |
| 4940403 | Dual parison extrusion head for multi-layer blow molding | — | 1990-07-10 |
| 4890994 | Apparatus for forming a parison with a view stripe | Thomas A. Shapler, Thomas R. Buehler | 1990-01-02 |
| 4740415 | Low density polyethylene and linear low density polyethylene blended composition and articles prepared therefrom | — | 1988-04-26 |
| 4622199 | Process for extruding high molecular weight, high density linear ethylene polymers to form heavy tubular members | — | 1986-11-11 |