Inventor · disambiguated record

Howell A. Hammond

Also filed as: HAMMOND HOWELL A · HAMMOND HOWELL ALLEN

2 granted patents·74 citations·filing 1975–1980

67Inventor score

Technology areasC07D G03C

Files withEASTMAN KODAK CO2

Top patents by PatentIndex Score

2 records

0190US4283472ASilver halide elements containing blocked pyrazolone magenta dye-forming couplersEASTMAN KODAK CO·Filed 1980·Granted Aug 11, 1981·31 cites·18 claims
0288US4009029ACyanoethyl-containing blocked development restrainersEASTMAN KODAK CO·Filed 1975·Granted Feb 22, 1977·43 cites·33 claims

Join the waitlist — get patent alerts

Get an alert when Howell A. Hammond files or is granted a new patent.

We store only your email — no account needed. See our privacy policy.

Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →