Assignee
REED ROCK BIT CO
US·28 granted patents·1,601 citations·filing 1980–1984
Top patents by PatentIndex Score
28 records- 0197US4398952AMethods of manufacturing gradient composite metallic structuresREED ROCK BIT CO·Filed 1980·Granted Aug 16, 1983·205 cites·18 claims
- 0295US4554986ARotary drill bit having drag cutting elementsREED ROCK BIT CO·Filed 1983·Granted Nov 26, 1985·148 cites·3 claims
- 0395US4372404ACutting teeth for rolling cutter drill bitREED ROCK BIT CO·Filed 1980·Granted Feb 8, 1983·76 cites·18 claims
- 0495US4334586AInserts for drilling bitsREED ROCK BIT CO·Filed 1980·Granted Jun 15, 1982·152 cites·10 claims
- 0592US4444281ACombination drag and roller cutter drill bitREED ROCK BIT CO·Filed 1983·Granted Apr 24, 1984·118 cites·6 claims
- 0689US4611673ADrill bit having offset roller cutters and improved nozzlesREED ROCK BIT CO·Filed 1983·Granted Sep 16, 1986·89 cites·14 claims
- 0789US4368788AMetal cutting tools utilizing gradient compositesREED ROCK BIT CO·Filed 1980·Granted Jan 18, 1983·81 cites·21 claims
- 0887US4582149ADrill bit having replaceable nozzles directing drilling fluid at a predetermined angleREED ROCK BIT CO·Filed 1983·Granted Apr 15, 1986·74 cites·6 claims
- 0987US4466622ACompound dynamic seal for rolling cutter drill bitREED ROCK BIT CO·Filed 1982·Granted Aug 21, 1984·44 cites·6 claims
- 1086US4657093ARolling cutter drill bitREED ROCK BIT CO·Filed 1982·Granted Apr 14, 1987·70 cites·6 claims
- 1186US4369849ALarge diameter oil well drilling bitREED ROCK BIT CO·Filed 1980·Granted Jan 25, 1983·102 cites·7 claims
- 1284US4306727ADynamic seal for rolling cutter drill bitREED ROCK BIT CO·Filed 1980·Granted Dec 22, 1981·37 cites·10 claims
- 1379US4556424ACermets having transformation-toughening properties and method of heat-treating to improve such propertiesREED ROCK BIT CO·Filed 1983·Granted Dec 3, 1985·32 cites·15 claims
- 1478US4516642ADrill bit having angled nozzles for improved bit and well bore cleaningREED ROCK BIT CO·Filed 1982·Granted May 14, 1985·52 cites·14 claims
- 1568US4542798ANozzle assembly for an earth boring drill bitREED ROCK BIT CO·Filed 1984·Granted Sep 24, 1985·53 cites·10 claims
- 1668US4495840ABit breakerREED ROCK BIT CO·Filed 1983·Granted Jan 29, 1985·43 cites·10 claims
- 1768US4381824ADrill bit lubrication systemREED ROCK BIT CO·Filed 1980·Granted May 3, 1983·20 cites·8 claims
- 1866US4427221ADrill bit nozzle retention and alignment systemREED ROCK BIT CO·Filed 1981·Granted Jan 24, 1984·39 cites·7 claims
- 1964US4420050AOil well drilling bitREED ROCK BIT CO·Filed 1981·Granted Dec 13, 1983·30 cites·4 claims
- 2062US4548280ADrill bit having a failure indicatorREED ROCK BIT CO·Filed 1984·Granted Oct 22, 1985·27 cites·16 claims
- 2162US4417629ADrill bit and method of manufactureREED ROCK BIT CO·Filed 1981·Granted Nov 29, 1983·31 cites·8 claims
- 2259US4514097AFriction bearing assembly having a series of rings constituting a bushing thereforREED ROCK BIT CO·Filed 1982·Granted Apr 30, 1985·16 cites·12 claims
- 2357US4558754ADrill bit having angled nozzlesREED ROCK BIT CO·Filed 1984·Granted Dec 17, 1985·23 cites·20 claims
- 2448US4412590ARock bit internal lubricant pumpREED ROCK BIT CO·Filed 1981·Granted Nov 1, 1983·11 cites·4 claims
- 2545US4323284AThrust face bearing structure for rolling cutter drill bitREED ROCK BIT CO·Filed 1980·Granted Apr 6, 1982·11 cites·6 claims
- 2638US4356034AMethod of reducing defects in powder metallurgy tungsten carbide elementsREED ROCK BIT CO·Filed 1980·Granted Oct 26, 1982·5 cites·3 claims
- 2733US4452323AValve assembly for drill bit lubrication systemREED ROCK BIT CO·Filed 1982·Granted Jun 5, 1984·5 cites·5 claims
- 2831US4372402ACombination fluid nozzle and backflow valveREED ROCK BIT CO·Filed 1981·Granted Feb 8, 1983·7 cites·5 claims
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