Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885414 | Perfluorinated propyl derivative compounds | Frank K. Schweighardt, Webb I. Bailey, John T. Lileck, John K. Graybill | 1989-12-05 |
| 4873315 | Perfluorinated propyl derivative compounds | Frank K. Schweighardt, Webb I. Bailey, John T. Lileck, John K. Graybill | 1989-10-10 |