Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5628950 | Method and apparatus for producing multilayer plastic articles | Walter J. Schrenk, Ranganath K. Shastri, Ralph E. Ayres, Mark A. Barger, Jeffrey Nicholas Bremmer | 1997-05-13 |
| 5540878 | Method for producing blow molded multilayer plastic articles | Walter J. Schrenk, Ranganath K. Shastri, Ralph E. Ayres | 1996-07-30 |
| 5380479 | Method and apparatus for producing multilayer plastic articles | Walter J. Schrenk, Ranganath K. Shastri, Ralph E. Ayres, Mark A. Barger, Jeffrey Nicholas Bremmer | 1995-01-10 |
| 5202074 | Method for producing injection molded multilayer articles | Walter J. Schrenk, Ranganath K. Shastri, Ralph E. Ayres | 1993-04-13 |