John C. Wollensak

Person

Bloomfield Hills, MI, US

People

Patents Grantslast 30 patents

Information Patent Grant
Polyurethanes from dialkyl diaminobenzenes and processes therefor
- Patent number 4,526,905
- Issue date Jul 2, 1985
- Ethyl Corporation
- Donald H. Lucast
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for rearrangement of alkyl groups on aromatic amines
- Patent number 4,341,903
- Issue date Jul 27, 1982
- Ethyl Corporation
- John C. Wollensak
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for rearrangement of alkyl groups on aromatic amines
- Patent number 4,317,931
- Issue date Mar 2, 1982
- Ethyl Corporation
- John C. Wollensak
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Phenol extended polyurethanes prepared by RIM process
- Patent number 4,314,962
- Issue date Feb 9, 1982
- Ethyl Corporation
- John C. Wollensak
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Amine antioxidant
- Patent number 4,269,720
- Issue date May 26, 1981
- Ethyl Corporation
- John D. Bartleson
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for producing 2,6-dialkylanilines
- Patent number 4,219,503
- Issue date Aug 26, 1980
- Ethyl Corporation
- John C. Wollensak
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Chemical process
- Patent number 4,128,582
- Issue date Dec 5, 1978
- Ethyl Corporation
- Luke J. Governale
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Thioether bis phenolic antioxidants
- Patent number 4,104,255
- Issue date Aug 1, 1978
- Ethyl Corporation
- John C. Wollensak
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Antioxidant
- Patent number 4,066,562
- Issue date Jan 3, 1978
- Ethyl Corporation
- John C. Wollensak
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Chemical process for forming 2,6-dimethylaniline
- Patent number 3,931,298
- Issue date Jan 6, 1976
- Ethyl Corporation
- John C. Wollensak
- C07 - ORGANIC CHEMISTRY

John C. Wollensak

Person

Patents Grantslast 30 patents

Polyurethanes from dialkyl diaminobenzenes and processes therefor

Process for rearrangement of alkyl groups on aromatic amines

Process for rearrangement of alkyl groups on aromatic amines

Phenol extended polyurethanes prepared by RIM process

Amine antioxidant

Process for producing 2,6-dialkylanilines

Chemical process

Thioether bis phenolic antioxidants

Antioxidant

Chemical process for forming 2,6-dimethylaniline