Inventor · disambiguated record
Nareshchandra J. Kar
Also filed as: KAR NARESHCHANDRA J
5 granted patents·167 citations·filing 1982–1986
83Inventor score
Files withSMITH INTERNATIONAL5
Top patents by PatentIndex Score
5 records- 0193US4708752AProcess for laser hardening drilling bit cones having hard cutter inserts placed thereinSMITH INTERNATIONAL·Filed 1986·Granted Nov 24, 1987·51 cites·4 claims
- 0290US4683781ACast steel rock bit cutter cones having metallurgically bonded cutter inserts, and process for making the sameSMITH INTERNATIONAL·Filed 1986·Granted Aug 4, 1987·32 cites·16 claims
- 0385US4429854ADual squeeze seal glandSMITH INTERNATIONAL·Filed 1982·Granted Feb 7, 1984·64 cites·4 claims
- 0450US4560175AHermetically welded belleville seal for rocks bitsSMITH INTERNATIONAL·Filed 1984·Granted Dec 24, 1985·12 cites·12 claims
- 0537US4632401AHermetically welded belleville seal for rock bitsSMITH INTERNATIONAL·Filed 1985·Granted Dec 30, 1986·8 cites·5 claims
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