Inventor · disambiguated record
Ronald A. Aspinwall
Also filed as: ASPINWALL RONALD A
3 granted patents·78 citations·filing 1981–1982
74Inventor score
Top patents by PatentIndex Score
3 records- 0174US4422475AVariable gain servo controlled directional valveVICKERS INC·Filed 1981·Granted Dec 27, 1983·32 cites·27 claims
- 0268US4457341AVariable pressure drop proportional motor controlled hydraulic directional valveVICKERS INC·Filed 1982·Granted Jul 3, 1984·25 cites·11 claims
- 0359US4328950AMagnetic detent for a control valveSPERRY CORP·Filed 1981·Granted May 11, 1982·21 cites·11 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →