Bierschenk; Thomas R.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Bierschenk; Thomas R..The latest application filed is for "liquid-phase fluorination".
- Bierschenk; Thomas R. - Round Rock TX
- Bierschenk; Thomas R. - Roundrock TX
| Patent | Date |
|---|---|
| Liquid-phase fluorination Grant 5,674,949 - Bierschenk , et al. October 7, 1 | 1997-10-07 |
| Fluorination of acetals, ketals and orthoesters Grant 5,557,012 - Bierschenk , et al. September 17, 1 | 1996-09-17 |
| Perfluorinates polyethers Grant 5,506,309 - Bierschenk , et al. April 9, 1 | 1996-04-09 |
| Liquid phase fluorination Grant 5,461,117 - Bierschenk , et al. October 24, 1 | 1995-10-24 |
| Liquid-phase fluorination Grant 5,322,904 - Bierschenk , et al. * June 21, 1 | 1994-06-21 |
| Liquid-phase fluorination Grant 5,322,903 - Bierschenk , et al. June 21, 1 | 1994-06-21 |
| Fluorination of acetals, ketals and orthoesters Grant 5,202,480 - Bierschenk , et al. April 13, 1 | 1993-04-13 |
| Use of chlorofluoropolymers as lubricants for refrigerants Grant 5,198,139 - Bierschenk , et al. * March 30, 1 | 1993-03-30 |
| Liquid phase fluorination Grant 5,093,432 - Bierschenk , et al. March 3, 1 | 1992-03-03 |
| Fluorination of acetals, ketals and orthoesters Grant 5,053,536 - Bierschenk , et al. October 1, 1 | 1991-10-01 |
| Use of chlorofluoropolyethers as lubricants for refrigerants Grant 4,931,199 - Bierschenk , et al. June 5, 1 | 1990-06-05 |
| Perfluorination of ethers in the presence of hydrogen fluoride scavengers Grant 4,859,747 - Bierschenk , et al. * August 22, 1 | 1989-08-22 |
| Perfluoropolyethers Grant 4,827,042 - Lagow , et al. May 2, 1 | 1989-05-02 |
| Perfluoropolyether solid fillers for lubricants Grant 4,803,005 - Juhlke , et al. February 7, 1 | 1989-02-07 |
| 1:1 copolymer of difluoromethylene oxide and tetrafluoroethylene oxide and synthesis Grant 4,760,198 - Bierschenk , et al. July 26, 1 | 1988-07-26 |
| Perfluorination of ethers in the presence of hydrogen fluoride scavengers Grant 4,755,567 - Bierschenk , et al. July 5, 1 | 1988-07-05 |
| On-line film fluorination method Grant 4,743,419 - Bierschenk May 10, 1 | 1988-05-10 |
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