Inventor · disambiguated record
William D. Symmank
Also filed as: SYMMANK WILLIAM D
3 granted patents·26 citations·filing 1975–1984
69Inventor score
Top patents by PatentIndex Score
3 records- 0148US4000616AMulti-engine multi-pump hydraulic summating systemCASE CO J I·Filed 1976·Granted Jan 4, 1977·9 cites·10 claims
- 0243US4015730AAdjustable boom for material handling implementCASE CO J I·Filed 1975·Granted Apr 5, 1977·9 cites·7 claims
- 0326US4722461APressure relief liquid spray dispenser apparatusSYMMANK WILLIAM D·Filed 1984·Granted Feb 2, 1988·8 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →