Richard L. Castenson

Follow

Person

Coventry, RI, US

People

Patents Grantslast 30 patents

Information Patent Grant
Azoacylacetamide dispersing agents and azo-pigment compositions
- Patent number 4,664,709
- Issue date May 12, 1987
- American Hoechst Corporation
- Richard Castenson
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Process for the preparation of 4-bromo-1,8-naphthalic acid anhydride
- Patent number 4,033,986
- Issue date Jul 5, 1977
- American Hoechst Corporation
- Richard L. Castenson
- C07 - ORGANIC CHEMISTRY