Inventor · disambiguated record
Charles W. Schaeffer
Also filed as: SCHAEFFER CHARLES · SCHAEFFER CHARLES W
6 granted patents·1 pending application·183 citations·filing 1977–2006
85Inventor score
Top patents by PatentIndex Score
7 records- 0187US4149446ALoad indicator washerBETHLEHEM STEEL CORP·Filed 1977·Granted Apr 17, 1979·63 cites·4 claims
- 0282US4395161ATransition plate for a mine roof trussBETHLEHEM STEEL CORP·Filed 1981·Granted Jul 26, 1983·35 cites·7 claims
- 0376US5352066AMine roof/bolt anchor assembly and method of installation thereofEASTERN CO·Filed 1991·Granted Oct 4, 1994·48 cites·15 claims
- 0464US4859118AMine roof support anchor and process for installing the sameBIRMINGHAM BOLT CO·Filed 1988·Granted Aug 22, 1989·28 cites·19 claims
- 0544US2006239867A1Radio frequency identification (RFID) in laboratoriesSCHAEFFER CHARLES·Filed 2006·Application pending·0 cites
- 0638US4345492AMethod of making metal forming punchesBETHLEHEM STEEL CORP·Filed 1980·Granted Aug 24, 1982·7 cites·3 claims
- 0730US4429560AApparatus for making a transition plate for a mine roof trussBETHLEHEM STEEL CORP·Filed 1981·Granted Feb 7, 1984·2 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →