Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4876304 | Polyvinyl chloride compositions plasticized with copolyesters | William J. Mertz | 1989-10-24 |
| 4824990 | Copolyester plasticizers for polyvinyl chloride | William J. Mertz | 1989-04-25 |