Inventor · disambiguated record
Frederick Alan Hoffstadt
Also filed as: HOFFSTADT FREDERICK A · HOFFSTADT FREDERICK ALAN
3 granted patents·60 citations·filing 1974–1980
72Inventor score
Files withCALGON CORP3
Top patents by PatentIndex Score
3 records- 0177US3943996ALow fluid loss cementing compositionsCALGON CORP·Filed 1975·Granted Mar 16, 1976·31 cites·2 claims
- 0272US3931096ALow fluid loss cementing compositionsCALGON CORP·Filed 1974·Granted Jan 6, 1976·23 cites·2 claims
- 0338US4272364AFrother for coal flotationCALGON CORP·Filed 1980·Granted Jun 9, 1981·6 cites·2 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →