Inventor · disambiguated record
Hanceford L. Allen
Also filed as: ALLEN HANCEFORD L
4 granted patents·50 citations·filing 1979–1981
77Inventor score
Files withINT MINERALS & CHEM CORP4
Top patents by PatentIndex Score
4 records- 0180US4278640AMethod for solvent extraction of metallic mineral values from acidic solutionsINT MINERALS & CHEM CORP·Filed 1979·Granted Jul 14, 1981·20 cites·11 claims
- 0260US4256570APurification of phosphoric acidINT MINERALS & CHEM CORP·Filed 1979·Granted Mar 17, 1981·11 cites·6 claims
- 0355US4341638APurification of phosphoric acidINT MINERALS & CHEM CORP·Filed 1979·Granted Jul 27, 1982·9 cites·6 claims
- 0449US4407725ARegeneration of activated carbonINT MINERALS & CHEM CORP·Filed 1981·Granted Oct 4, 1983·10 cites·4 claims
Join the waitlist — get patent alerts
Get an alert when Hanceford L. Allen 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 →