Assignee
BROWN OIL TOOLS
US·29 granted patents·1,299 citations·filing 1971–1979
Top patents by PatentIndex Score
29 records- 0193US4249600ADouble cylinder systemBROWN OIL TOOLS·Filed 1978·Granted Feb 10, 1981·94 cites·13 claims
- 0292US4292988ASoft shock pressure plugBROWN OIL TOOLS·Filed 1979·Granted Oct 6, 1981·89 cites·15 claims
- 0391US3964552ADrive connector with load compensatorBROWN OIL TOOLS·Filed 1975·Granted Jun 22, 1976·94 cites·22 claims
- 0490US4224987AWell toolBROWN OIL TOOLS·Filed 1978·Granted Sep 30, 1980·82 cites·43 claims
- 0589US4265304ACoiled tubing apparatusBROWN OIL TOOLS·Filed 1978·Granted May 5, 1981·71 cites·29 claims
- 0686US3973587ACheck valve assemblyBROWN OIL TOOLS·Filed 1975·Granted Aug 10, 1976·64 cites·10 claims
- 0785US4049055AGravel pack method, retrievable well packer and gravel pack apparatusBROWN OIL TOOLS·Filed 1971·Granted Sep 20, 1977·60 cites·43 claims
- 0883US4059150AAnchoring assemblyBROWN OIL TOOLS·Filed 1976·Granted Nov 22, 1977·56 cites·34 claims
- 0982US4078606APressure actuated holding apparatusBROWN OIL TOOLS·Filed 1976·Granted Mar 14, 1978·52 cites·23 claims
- 1082US4018274AWell packerBROWN OIL TOOLS·Filed 1975·Granted Apr 19, 1977·51 cites·12 claims
- 1182US3976133ARetrievable well packerBROWN OIL TOOLS·Filed 1975·Granted Aug 24, 1976·52 cites·10 claims
- 1281US4049015ACheck valve assemblyBROWN OIL TOOLS·Filed 1976·Granted Sep 20, 1977·51 cites·6 claims
- 1380US4216834AConnecting assembly and methodBROWN OIL TOOLS·Filed 1978·Granted Aug 12, 1980·62 cites·35 claims
- 1480US4114694ANo-shock pressure plug apparatusBROWN OIL TOOLS·Filed 1977·Granted Sep 19, 1978·31 cites·10 claims
- 1579US3991826ARetrievable well packer and anchor with latch releaseBROWN OIL TOOLS·Filed 1975·Granted Nov 16, 1976·43 cites·8 claims
- 1677US4263936AErosion resistant check valve assemblyBROWN OIL TOOLS·Filed 1979·Granted Apr 28, 1981·41 cites·2 claims
- 1776US4018272AWell packer apparatusBROWN OIL TOOLS·Filed 1975·Granted Apr 19, 1977·42 cites·22 claims
- 1875US3934652AApparatus and method for cementing well linersBROWN OIL TOOLS·Filed 1974·Granted Jan 27, 1976·35 cites·18 claims
- 1974US4269277APower slip assemblyBROWN OIL TOOLS·Filed 1979·Granted May 26, 1981·34 cites·32 claims
- 2073US4108203ACheck valve assemblyBROWN OIL TOOLS·Filed 1977·Granted Aug 22, 1978·23 cites·11 claims
- 2171US4071084AWell packerBROWN OIL TOOLS·Filed 1976·Granted Jan 31, 1978·33 cites·49 claims
- 2261US4081039AConnecting assembly and methodBROWN OIL TOOLS·Filed 1976·Granted Mar 28, 1978·28 cites·34 claims
- 2360US4226447ASwivel apparatusBROWN OIL TOOLS·Filed 1976·Granted Oct 7, 1980·23 cites·11 claims
- 2459US4088298ACheck valve assemblyBROWN OIL TOOLS·Filed 1976·Granted May 9, 1978·19 cites·6 claims
- 2555US4083408AWell completion apparatusBROWN OIL TOOLS·Filed 1976·Granted Apr 11, 1978·21 cites·17 claims
- 2653US4131160AWell tool with pressure responsive tightening meansBROWN OIL TOOLS·Filed 1977·Granted Dec 26, 1978·17 cites·23 claims
- 2750US4015662AWell tool which changes reciprocating movement to rotary motionBROWN OIL TOOLS·Filed 1975·Granted Apr 5, 1977·15 cites·21 claims
- 2847US4030546ASwivel assemblyBROWN OIL TOOLS·Filed 1975·Granted Jun 21, 1977·15 cites·27 claims
- 2930US4032183APipe elevatorBROWN OIL TOOLS·Filed 1975·Granted Jun 28, 1977·1 cites·6 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →