Inventor · disambiguated record
John R. England
Also filed as: ENGLAND JOHN R
5 granted patents·133 citations·filing 1979–1991
83Inventor score
Technology areasE21B
Files withINCO LTD5
Top patents by PatentIndex Score
5 records- 0170US4284154ANon-rotating spring loaded stabilizerINCO LTD·Filed 1979·Granted Aug 18, 1981·33 cites·10 claims
- 0267US4637475AIn-the-hole drillINCO LTD·Filed 1984·Granted Jan 20, 1987·41 cites·10 claims
- 0353US5199515ADry pneumatic system for hard rock shaft drillingINCO LTD·Filed 1990·Granted Apr 6, 1993·28 cites·16 claims
- 0451US4610317ASpherical bitINCO LTD·Filed 1985·Granted Sep 9, 1986·26 cites·6 claims
- 0527US5125692ADry pneumatic system for hard rock shaft drillingINCO LTD·Filed 1991·Granted Jun 30, 1992·5 cites·3 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →