Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6790428 | Process for the reduction or elimination of NH3/HF byproduct in the manufacture of nitrogen trifluoride | Athanasios Tsirukis, Howard Paul Withers, Jr., Kenneth E. Fegley | 2004-09-14 |
| 4983373 | Process for the production of high purity zirconium tetrafluoride and other fluorides | Howard Paul Withers, Jr., Andrew J. Woytek | 1991-01-08 |
| 4925992 | Perfluorinated 2-ISO propyl derivative compounds | Frank K. Schweighardt, Webb I. Bailey, John K. Graybill, Eugene George Lutz | 1990-05-15 |
| 4901910 | Perfluorinated propyl derivative compounds for vapor bath soldering | Frank K. Schweighardt, Webb I. Bailey, John K. Graybill, Eugene George Lutz | 1990-02-20 |
| 4885414 | Perfluorinated propyl derivative compounds | Frank K. Schweighardt, Webb I. Bailey, John K. Graybill, Eugene George Lutz | 1989-12-05 |
| 4873315 | Perfluorinated propyl derivative compounds | Frank K. Schweighardt, Webb I. Bailey, John K. Graybill, Eugene George Lutz | 1989-10-10 |
| 4801761 | Perfluoro-1,1-di(orthoxylyl)alkyl compounds | Webb I. Bailey | 1989-01-31 |
| 4446920 | Method and apparatus for perforating or cutting with a solid fueled gas mixture | Andrew J. Woytek, Edward J. Steigerwalt | 1984-05-08 |
| 4193976 | Removal of dinitrogen difluoride from nitrogen trifluoride | John Papinsick, Edward J. Steigerwalt | 1980-03-18 |