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ROCK BIT INTERNATIONAL, L.P
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FT. WORTH, TX, US
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Patents Grants
last 30 patents
Information
Patent Grant
Rock bit with channel structure for retaining cutter segments
Patent number
7,025,155
Issue date
Apr 11, 2006
Rock Bit International, L.P.
Roy D. Estes
E21 - EARTH DRILLING MINING
Information
Patent Grant
Adjustable earth boring device
Patent number
6,745,858
Issue date
Jun 8, 2004
Rock Bit International
Roy D. Estes
E21 - EARTH DRILLING MINING
Information
Patent Grant
Sharp gage for mill tooth rock bits
Patent number
6,435,287
Issue date
Aug 20, 2002
Rock Bit International, Inc.
Roy Dee Estes
E21 - EARTH DRILLING MINING
Information
Patent Grant
Sharp gage for mill tooth rockbits
Patent number
6,186,250
Issue date
Feb 13, 2001
Rock Bit International, Inc.
Roy Estes
E21 - EARTH DRILLING MINING
Information
Patent Grant
One cone rotary drill bit featuring enhanced grooves
Patent number
6,167,975
Issue date
Jan 2, 2001
Rock Bit International, Inc.
Roy Dee Estes
E21 - EARTH DRILLING MINING
Information
Patent Grant
Optical fiber modulation and demodulation system
Patent number
5,808,779
Issue date
Sep 15, 1998
Rock Bit International
R. Stephen Weis
G02 - OPTICS
Information
Patent Grant
Roller cone core bit
Patent number
5,454,437
Issue date
Oct 3, 1995
Rock Bit International, Inc.
Roy D. Estes
E21 - EARTH DRILLING MINING
Information
Patent Grant
Rock bit with offset tool port
Patent number
5,244,050
Issue date
Sep 14, 1993
Rock Bit International, Inc.
Roy D. Estes
E21 - EARTH DRILLING MINING
Information
Patent Grant
Rock bit with vectored inserts
Patent number
5,197,555
Issue date
Mar 30, 1993
Rock Bit International, Inc.
Roy D. Estes
E21 - EARTH DRILLING MINING
Information
Patent Grant
Rock bit with reaming rows
Patent number
5,145,016
Issue date
Sep 8, 1992
Rock Bit International, Inc.
Roy D. Estes
E21 - EARTH DRILLING MINING
Patents Applications
last 30 patents
Trademark
last 30 trademarks
Information
Trademark
78379907 - QUIKSHOT
Serial number
78379907
Registration number
3040181
Filing date
Mar 7, 2004
Rock Bit International, Inc.
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
75749856 - THE ELIMINATOR
Serial number
75749856
Filing date
Jul 14, 1999
Rock Bit International, Inc.
6 - Common metals and their alloys
Information
Trademark
75499925 - EXCALIBUR
Serial number
75499925
Registration number
2485582
Filing date
Jun 10, 1998
Rock Bit International, Inc.
7 - Machines and machine tools