Inventor · disambiguated record

Francis M. Callahan

Also filed as: CALLAHAN FRANCIS M

2 granted patents·12 citations·filing 1982–1983

56Inventor score

Technology areasC07H

Files withAMERICAN CYANAMID CO2

Top patents by PatentIndex Score

2 records

0155US4468385APoly-cation salts of 4-O-poly-hexaose-thio-alkylene sulfate derivatives and method of useAMERICAN CYANAMID CO·Filed 1983·Granted Aug 28, 1984·7 cites·19 claims
0246US4402944APolysulfonate Sennoside A & B compounds and method of useAMERICAN CYANAMID CO·Filed 1982·Granted Sep 6, 1983·5 cites·12 claims

Join the waitlist — get patent alerts

Get an alert when Francis M. Callahan 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 →