Inventor · disambiguated record
Hartfrid Vollmer
Also filed as: HEYMER GERO · VOLLMER HARTFRID
11 granted patents·45 citations·filing 1974–1980
87Inventor score
Files withHOECHST AG11
Top patents by PatentIndex Score
11 records- 0179US4032498AFlame-retardant plasticizers for polyvinyl chlorideHOECHST AG·Filed 1975·Granted Jun 28, 1977·11 cites·18 claims
- 0264US4324919AProduction of tertiary phosphinesHOECHST AG·Filed 1980·Granted Apr 13, 1982·8 cites·1 claims
- 0361US4022852AProcess for making phosphorus sulfamidesHOECHST AG·Filed 1975·Granted May 10, 1977·5 cites·10 claims
- 0459US4029721AHalogen-containing phosphoric acid polyestersHOECHST AG·Filed 1975·Granted Jun 14, 1977·4 cites·14 claims
- 0549US4061696ADiphosphatesHOECHST AG·Filed 1976·Granted Dec 6, 1977·2 cites·4 claims
- 0648US3998764AReducing flammability of polyurethane foams with phosphorus compoundsHOECHST AG·Filed 1974·Granted Dec 21, 1976·6 cites·4 claims
- 0745US4091012AProduction of tertiary phosphine oxidesHOECHST AG·Filed 1977·Granted May 23, 1978·2 cites·7 claims
- 0840US3978170AProcess for making polyols containing halogen and phosphorusHOECHST AG·Filed 1974·Granted Aug 31, 1976·4 cites·9 claims
- 0936US4156697AProduction of alkylphosphinesHOECHST AG·Filed 1977·Granted May 29, 1979·3 cites·10 claims
- 1033US4118590APhosphorbetaines and process for making themHOECHST AG·Filed 1976·Granted Oct 3, 1978·0 cites·15 claims
- 1130US4351960AProduction of an isomeric mixture of secondary phosphinesHOECHST AG·Filed 1980·Granted Sep 28, 1982·0 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →