Inventor · disambiguated record
Ralph Feder
Also filed as: FEDER RALPH
3 granted patents·93 citations·filing 1975–1980
74Inventor score
Files withIBM3
Top patents by PatentIndex Score
3 records- 0188US4018938AFabrication of high aspect ratio masksIBM·Filed 1975·Granted Apr 19, 1977·46 cites·18 claims
- 0281US3984582AMethod for preparing positive resist imageIBM·Filed 1975·Granted Oct 5, 1976·38 cites·29 claims
- 0334US4293374AHigh aspect ratio, high resolution mask fabricationIBM·Filed 1980·Granted Oct 6, 1981·9 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →