Inventor · disambiguated record
John O. Schaefer
Also filed as: SCHAEFER JOHN O · SCHAEFER JOHN O'NEIL
4 granted patents·22 citations·filing 1974–1986
69Inventor score
Files withIBM4
Top patents by PatentIndex Score
4 records- 0158US4734965AAutomatic wiring network fabricatorIBM·Filed 1986·Granted Apr 5, 1988·17 cites·9 claims
- 0233US3948381APrinter with non return to home rack shift selection mechanismIBM·Filed 1974·Granted Apr 6, 1976·4 cites·5 claims
- 0328US4297041AVariable cam profile selection system for single element typewriterIBM·Filed 1979·Granted Oct 27, 1981·0 cites·22 claims
- 0427US4031994ADouble tab rack for a typewriterIBM·Filed 1975·Granted Jun 28, 1977·1 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →