Inventor · disambiguated record
Thomas R. Bierschenk
Also filed as: BIERSCHENK THOMAS R · BIERSCHENK THOMAS RAY
31 granted patents·1 pending application·733 citations·filing 1978–2003
98Inventor score
Top patents by PatentIndex Score
32 records- 0198US5093432ALiquid phase fluorinationEXFLUOR RES CORP·Filed 1989·Granted Mar 3, 1992·141 cites·21 claims
- 0295US4755567APerfluorination of ethers in the presence of hydrogen fluoride scavengersEXFLUOR RES CORP·Filed 1986·Granted Jul 5, 1988·61 cites·31 claims
- 0390US5674949ALiquid-phase fluorinationEXFLUOR RES CORP·Filed 1995·Granted Oct 7, 1997·32 cites·20 claims
- 0488US5571870ALiquid phase fluorinationEXFLUOR RES CORP·Filed 1994·Granted Nov 5, 1996·21 cites·28 claims
- 0588US5322903ALiquid-phase fluorinationEXFLUOR RES CORP·Filed 1992·Granted Jun 21, 1994·38 cites·20 claims
- 0687US4859747APerfluorination of ethers in the presence of hydrogen fluoride scavengersEXFLUOR RES CORP·Filed 1988·Granted Aug 22, 1989·29 cites·17 claims
- 0786US4827042APerfluoropolyethersEXFLUOR RES CORP·Filed 1987·Granted May 2, 1989·43 cites·3 claims
- 0884US4743419AOn-line film fluorination methodDOW CHEMICAL CO·Filed 1986·Granted May 10, 1988·50 cites·10 claims
- 0982US4803005APerfluoropolyether solid fillers for lubricantsEXFLUOR RES CORP·Filed 1986·Granted Feb 7, 1989·27 cites·11 claims
- 1080US5753776ALiquid-phase fluorinationEXFLUOR RES CORP·Filed 1995·Granted May 19, 1998·27 cites·35 claims
- 1180US5539059APerfluorinated polyethersEXFLUOR RES CORP·Filed 1995·Granted Jul 23, 1996·35 cites·25 claims
- 1279US5322904ALiquid-phase fluorinationEXFLUOR RES CORP·Filed 1993·Granted Jun 21, 1994·20 cites·28 claims
- 1379US5202480AFluorination of acetals, ketals and orthoestersEXFLUOR RES CORP·Filed 1991·Granted Apr 13, 1993·24 cites·4 claims
- 1478US4760198A1:1 copolymer of difluoromethylene oxide and tetrafluoroethylene oxide and synthesisEXFLUOR RES CORP·Filed 1985·Granted Jul 26, 1988·22 cites·7 claims
- 1573US5053536AFluorination of acetals, ketals and orthoestersEXFLUOR RES CORP·Filed 1989·Granted Oct 1, 1991·19 cites·4 claims
- 1670US5543567AFluorination of acetals, ketals and orthoestersEXFLUOR RES CORP·Filed 1995·Granted Aug 6, 1996·8 cites·8 claims
- 1764US5332790ALiquid-phase fluorinationEXFLUOR RES CORP·Filed 1993·Granted Jul 26, 1994·8 cites·28 claims
- 1864US4894484APyrolysis of perfluoropolyethersEXFLUOR RES CORP·Filed 1987·Granted Jan 16, 1990·13 cites·14 claims
- 1963US4931199AUse of chlorofluoropolyethers as lubricants for refrigerantsEXFLUOR RES CORP·Filed 1989·Granted Jun 5, 1990·12 cites·18 claims
- 2062US4925583APerfluoropolyether solid fillers for lubricantsEXFLUOR RES CORP·Filed 1989·Granted May 15, 1990·12 cites·3 claims
- 2161US5506309APerfluorinates polyethersEXFLUOR RES CORP·Filed 1995·Granted Apr 9, 1996·18 cites·34 claims
- 2261US5461117ALiquid phase fluorinationEXFLUOR RES CORP·Filed 1994·Granted Oct 24, 1995·9 cites·30 claims
- 2359US4631200AGraphite composite chipsDOW CHEMICAL CO·Filed 1985·Granted Dec 23, 1986·10 cites·8 claims
- 2458US5032302APerfluoropolyether solid fillers for lubricantsEXFLUOR RES CORP·Filed 1990·Granted Jul 16, 1991·13 cites·8 claims
- 2557US5300683AFluorination of acetals, ketals and orthoestersEXFLUOR RES CORP·Filed 1992·Granted Apr 5, 1994·7 cites·3 claims
- 2651US4195190APreparation of ethylene glycolPPG INDUSTRIES INC·Filed 1978·Granted Mar 25, 1980·3 cites·4 claims
- 2749US5202501APerfluoropolyethersEXFLUOR RES CORP·Filed 1991·Granted Apr 13, 1993·9 cites·9 claims
- 2847US5198139AUse of chlorofluoropolymers as lubricants for refrigerantsEXFLUOR RES CORP·Filed 1991·Granted Mar 30, 1993·9 cites·27 claims
- 2947US5025093APyrolysis of perfluoropolyethersEXFLUOR RES CORP·Filed 1990·Granted Jun 18, 1991·6 cites·12 claims
- 3045US5557012AFluorination of acetals, ketals and orthoestersEXFLUOR RES CORP·Filed 1995·Granted Sep 17, 1996·5 cites·5 claims
- 3141US5523496AFluorination of acetals, ketals and orthoestersEXFLUOR RES CORP·Filed 1994·Granted Jun 4, 1996·2 cites·20 claims
- 3231US2004137371A1Method of making a semiconductor device using a pellicle that is transparent at short wavelengthsFiled 2003·Application pending·0 cites
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