Inventor · disambiguated record
Frederick A. Schumacher
Also filed as: SCHUMACHER FREDERICK A
5 granted patents·42 citations·filing 1977–2005
80Inventor score
Top patents by PatentIndex Score
5 records- 0170US6852006B1Automated system for precision grinding of feedstockGLEBAR COMPANY INC·Filed 2002·Granted Feb 8, 2005·12 cites·57 claims
- 0257US7429208B1Automated system for precision grinding of feedstockGLEBAR CO INC·Filed 2005·Granted Sep 30, 2008·5 cites·21 claims
- 0356US6991518B1Automated system for precision grinding of feedstockGLEBAR CO INC·Filed 2003·Granted Jan 31, 2006·6 cites·2 claims
- 0447US4135499ASealing pistonSILICON TECHNOLOGY·Filed 1977·Granted Jan 23, 1979·8 cites·5 claims
- 0540US5022194AMethod and apparatus for finishing elastic O-ring gasketsGLEBAR COMPANY INC·Filed 1990·Granted Jun 11, 1991·11 cites·32 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →