Petrow; Henry G.

Patent Applications and Registrations

Patent applications and USPTO patent grants for Petrow; Henry G..The latest application filed is for "finely particulated colloidal platinum compound and sol for producing the same and method of preparation of fuel cell electrodes and the like employing the same".

Company Profile

0.11.0

Petrow; Henry G. - Watertown MA
Petrow; Henry G. - Cambridge MA

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Finely particulated colloidal platinum compound and sol for producing the same and method of preparation of fuel cell electrodes and the like employing the same Grant RE33,149 - Petrow , et al. January 16, 1	1990-01-16
Compositions and methods for permanently waving or straightening hair Grant 4,659,566 - Petrow April 21, 1	1987-04-21
Low pressure-drop catalytic mat and method of preparing the same Grant 4,399,185 - Petrow August 16, 1	1983-08-16
Control of the interaction of novel platinum-on-carbon electrocatalysts with fluorinated hydrocarbon resins in the preparation of fuel cell electrodes Grant 4,166,143 - Petrow , et al. August 28, 1	1979-08-28
Platinum colloid sol and method of forming same Grant 4,059,541 - Petrow , et al. November 22, 1	1977-11-22
Finely particulated colloidal platinum compound and sol for producing the same, and method of preparation of fuel cell electrodes and the like employing the same Grant 4,044,193 - Petrow , et al. August 23, 1	1977-08-23
Catalytic platinum metal particles on a substrate and method of preparing the catalyst Grant 3,992,331 - Petrow , et al. November 16, 1	1976-11-16
Finely particulated colloidal platinum compound and sol for producing the same, and method of preparation Grant 3,992,512 - Petrow , et al. November 16, 1	1976-11-16
Colloidal sol antimony pentaoxide flameproofing compositions Grant 3,960,989 - Petrow , et al. June 1, 1	1976-06-01
Method of forming palladium oxide and palladium particles Grant 3,933,684 - Petrow , et al. January 20, 1	1976-01-20
Gold-coated Platinum-metal Black Catalytic Structure And Method Of Preparation Grant 3,776,776 - Petrow December 4, 1	1973-12-04

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