Hartfrid Vollmer

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Erftstadt Liblar, DT

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Patents Grantslast 30 patents

Information Patent Grant
Production of tertiary phosphine oxides
- Patent number 4,091,012
- Issue date May 23, 1978
- Hoechst Aktiengesellschaft
- Hartfrid Vollmer
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Diphosphates
- Patent number 4,061,696
- Issue date Dec 6, 1977
- Hoechst Aktiengesellschaft
- Hartfrid Vollmer
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Flame-retardant plasticizers for polyvinyl chloride
- Patent number 4,032,498
- Issue date Jun 28, 1977
- Hoechst Aktiengesellschaft
- Franz-Josef Dany
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Halogen-containing phosphoric acid polyesters
- Patent number 4,029,721
- Issue date Jun 14, 1977
- Hoechst Aktiengesellschaft
- Hartfrid Vollmer
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for making phosphorus sulfamides
- Patent number 4,022,852
- Issue date May 10, 1977
- Hoechst Aktiengesellschaft
- Hartfrid Vollmer
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Reducing flammability of polyurethane foams with phosphorus compounds
- Patent number 3,998,764
- Issue date Dec 21, 1976
- Hoechst Aktiengesellschaft
- Hartfrid Vollmer
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for making polyols containing halogen and phosphorus
- Patent number 3,978,170
- Issue date Aug 31, 1976
- Hoechst Aktiengesellschaft
- Hartfrid Vollmer
- C07 - ORGANIC CHEMISTRY