Inventor · disambiguated record
Jonald R. Gradwohl
Also filed as: GRADWOHL JONALD R
3 granted patents·64 citations·filing 1978–2006
71Inventor score
Top patents by PatentIndex Score
3 records- 0178US4227709AConvertible hand truck-wagonGRADWOHL DONALD R·Filed 1978·Granted Oct 14, 1980·47 cites·3 claims
- 0269US8011876B2Wind driven power generatorGRADWOHL DONALD R·Filed 2006·Granted Sep 6, 2011·15 cites·14 claims
- 0355US7063909B2Fuel-cell element stack with stress relief and methodsHEWLETT PACKARD DEVELOPMENT CO·Filed 2003·Granted Jun 20, 2006·2 cites·35 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →