RE

Robert F. Estes

FB Fox Boro: 2 patents #52 of 212Top 25%
CG Crosby Valve & Gage: 1 patents #4 of 6Top 70%
Overall (All Time): #1,677,788 of 4,157,543Top 45%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
4586533 Non-flowing modulating pilot operated relief valve 1986-05-06
4329910 Transducer assembly providing position output proportional to electrical input signal Everett O. Olsen, Paul W. Rezendes, George F. Williams 1982-05-18
4213478 Transducer assembly providing pneumatic output proportional to electrical input signal Everett O. Olsen, Paul W. Rezendes, George F. Williams 1980-07-22