Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5628950 | Method and apparatus for producing multilayer plastic articles | Walter J. Schrenk, Ranganath K. Shastri, Herbert C. Roehrs, Mark A. Barger, Jeffrey Nicholas Bremmer | 1997-05-13 |
| 5540878 | Method for producing blow molded multilayer plastic articles | Walter J. Schrenk, Ranganath K. Shastri, Herbert C. Roehrs | 1996-07-30 |
| 5380479 | Method and apparatus for producing multilayer plastic articles | Walter J. Schrenk, Herbert C. Roehrs, Ranganath K. Shastri, Mark A. Barger, Jeffrey Nicholas Bremmer | 1995-01-10 |
| 5202074 | Method for producing injection molded multilayer articles | Walter J. Schrenk, Ranganath K. Shastri, Herbert C. Roehrs | 1993-04-13 |
| 5094793 | Methods and apparatus for generating interfacial surfaces | Walter J. Schrenk, Ranganath K. Shastri, Daniel J. Gosen | 1992-03-10 |