Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4760114 | Polyphenylene ether compositions and process | William R. Haaf, Arthur Katchmn | 1988-07-26 |
| 4433088 | Polyphenylene ether compositions and process | William R. Haaf, Arthur Katchman | 1984-02-21 |