Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4876051 | Apparatus and method for extruding and expanding polytetrafluoroethylene tubing and the products produced thereby | Benjamin G. Williams, Rob G. Riffle, Charles E. Biggerstaff | 1989-10-24 |
| 4840815 | Low caloric alkyl glycoside fatty acid polyester fat substitutes | Richard S. Meyer, Jeffrey M. Root, Daryl B. Winter | 1989-06-20 |