Issued Patents 1989
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885414 | Perfluorinated propyl derivative compounds | Frank K. Schweighardt, John T. Lileck, John K. Graybill, Eugene George Lutz | 1989-12-05 |
| 4881682 | Vapor phase soldering with perfluorinated butyl derivative compounds | Frank K. Schweighardt | 1989-11-21 |
| 4873315 | Perfluorinated propyl derivative compounds | Frank K. Schweighardt, John T. Lileck, John K. Graybill, Eugene George Lutz | 1989-10-10 |
| 4849553 | Perfluorinated dibutyl derivatives compounds | Frank K. Schweighardt, Varin Ayala | 1989-07-18 |
| 4827053 | Perfluorinated Di-isopropylmethyl decalin | Frank K. Schweighardt, Varin Ayala | 1989-05-02 |
| 4801761 | Perfluoro-1,1-di(orthoxylyl)alkyl compounds | John T. Lileck | 1989-01-31 |