Inventor · disambiguated record
David A. Horsma
Also filed as: HORSMA DAVID A · HORSMA DAVID AUGUST
23 granted patents·1,735 citations·filing 1975–1993
97Inventor score
Top patents by PatentIndex Score
23 records- 0198US4085286AHeat-recoverable sealing article with self-contained heating means and method of sealing a splice therewithRAYCHEM CORP·Filed 1975·Granted Apr 18, 1978·159 cites·41 claims
- 0297US4388607AConductive polymer compositions, and to devices comprising such compositionsRAYCHEM CORP·Filed 1979·Granted Jun 14, 1983·141 cites·49 claims
- 0397US4330703ALayered self-regulating heating articleRAYCHEM CORP·Filed 1979·Granted May 18, 1982·146 cites·51 claims
- 0497US4246468AElectrical devices containing PTC elementsRAYCHEM CORP·Filed 1978·Granted Jan 20, 1981·63 cites·30 claims
- 0597US4177376ALayered self-regulating heating articleRAYCHEM CORP·Filed 1975·Granted Dec 4, 1979·142 cites·46 claims
- 0696US4543474ALayered self-regulating heating articleRAYCHEM CORP·Filed 1982·Granted Sep 24, 1985·75 cites·47 claims
- 0795US5089688AComposite circuit protection devicesRAYCHEM CORP·Filed 1989·Granted Feb 18, 1992·110 cites·23 claims
- 0895US4560498APositive temperature coefficient of resistance compositionsRAYCHEM CORP·Filed 1979·Granted Dec 24, 1985·119 cites·20 claims
- 0995US4421582ASelf-heating article with deformable electrodesRAYCHEM CORP·Filed 1977·Granted Dec 20, 1983·82 cites·46 claims
- 1094US5148005AComposite circuit protection devicesRAYCHEM CORP·Filed 1989·Granted Sep 15, 1992·88 cites·16 claims
- 1194US4654511ALayered self-regulating heating articleRAYCHEM CORP·Filed 1985·Granted Mar 31, 1987·76 cites·15 claims
- 1294US4017715ATemperature overshoot heaterRAYCHEM CORP·Filed 1975·Granted Apr 12, 1977·101 cites·40 claims
- 1390US5166658AElectrical device comprising conductive polymersRAYCHEM CORP·Filed 1990·Granted Nov 24, 1992·82 cites·20 claims
- 1489US4967176AAssemblies of PTC circuit protection devicesRAYCHEM CORP·Filed 1988·Granted Oct 30, 1990·61 cites·9 claims
- 1586US4658121ASelf regulating heating device employing positive temperature coefficient of resistance compositionsRAYCHEM CORP·Filed 1985·Granted Apr 14, 1987·49 cites·18 claims
- 1684US4314145AElectrical devices containing PTC elementsRAYCHEM CORP·Filed 1979·Granted Feb 2, 1982·38 cites·4 claims
- 1783US5430815AOptical fiber water sensorRAYCHEM CORP·Filed 1993·Granted Jul 4, 1995·46 cites·17 claims
- 1883US4095044AMultiple cable adapter and splice case including the sameRAYCHEM CORP·Filed 1976·Granted Jun 13, 1978·41 cites·10 claims
- 1980US5064997AComposite circuit protection devicesRAYCHEM CORP·Filed 1989·Granted Nov 12, 1991·37 cites·24 claims
- 2070US4209352AMethods for sealing closure members to substratesRAYCHEM CORP·Filed 1978·Granted Jun 24, 1980·19 cites·39 claims
- 2169US5396575ASealed optical fiber closuresRAYNET CORP·Filed 1992·Granted Mar 7, 1995·36 cites·15 claims
- 2250US4236949AProcess for preparing a hermetically sealed assemblyRAYCHEM CORP·Filed 1978·Granted Dec 2, 1980·14 cites·49 claims
- 2348US4419156AMethod of encapsulationRAYCHEM CORP·Filed 1978·Granted Dec 6, 1983·10 cites·11 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →