Roy D. Estes

Person

Weatherford, TX, US

People

Patents Grantslast 30 patents

Information Patent Grant
Stepped polycrystalline diamond compact insert
- Patent number 7,140,448
- Issue date Nov 28, 2006
- Ulterra Drilling Technologies, L.P.
- Roy Estes
- E21 - EARTH DRILLING MINING
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
Stepped polycrystalline diamond compact insert
- Patent number 6,904,984
- Issue date Jun 14, 2005
- Rock Bit L.P.
- Roy D. Estes
- E21 - EARTH DRILLING MINING
Information Patent Grant
Roller cone bi-center bit
- Patent number 6,902,014
- Issue date Jun 7, 2005
- Rock Bit 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
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
Kerf-cutting apparatus for increased drilling rates
- Patent number 5,145,017
- Issue date Sep 8, 1992
- Exxon Production Research Company
- Jesse L. Holster
- 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
Information Patent Grant
Rock bit with improved shank protection
- Patent number 5,074,367
- Issue date Dec 24, 1991
- Rock Bit Industries, Inc.
- Roy D. Estes
- E21 - EARTH DRILLING MINING
Information Patent Grant
Rock bit cone lock and method
- Patent number 4,730,681
- Issue date Mar 15, 1988
- Rock Bit Industries U.S.A., Inc.
- Roy D. Estes
- E21 - EARTH DRILLING MINING
Information Patent Grant
Radial rock bit seal
- Patent number 4,537,409
- Issue date Aug 27, 1985
- Rock Bit Industries U.S.A., Inc.
- Roy D. Estes
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
Stepped polycrystalline diamond compact insert
- Publication number 20060283640
- Publication date Dec 21, 2006
- Roy Estes
- E21 - EARTH DRILLING MINING
Information Patent Application
Directable nozzle for rock drilling bits
- Publication number 20060266557
- Publication date Nov 30, 2006
- Roy Estes
- E21 - EARTH DRILLING MINING
Information Patent Application
Modular kerfing drill bit
- Publication number 20060196699
- Publication date Sep 7, 2006
- Roy Estes
- E21 - EARTH DRILLING MINING
Information Patent Application
Stepped polycrystalline diamond compact insert
- Publication number 20050279534
- Publication date Dec 22, 2005
- Roy Estes
- E21 - EARTH DRILLING MINING
Information Patent Application
Sharp gage for mill tooth rock bits
- Publication number 20010004945
- Publication date Jun 28, 2001
- Roy Dee Estes
- E21 - EARTH DRILLING MINING

Roy D. Estes

Person

Patents Grantslast 30 patents

Stepped polycrystalline diamond compact insert

Rock bit with channel structure for retaining cutter segments

Stepped polycrystalline diamond compact insert

Roller cone bi-center bit

Adjustable earth boring device

Sharp gage for mill tooth rock bits

Sharp gage for mill tooth rockbits

One cone rotary drill bit featuring enhanced grooves

Roller cone core bit

Rock bit with offset tool port

Rock bit with vectored inserts

Kerf-cutting apparatus for increased drilling rates

Rock bit with reaming rows

Rock bit with improved shank protection

Rock bit cone lock and method

Radial rock bit seal

Patents Applicationslast 30 patents

Stepped polycrystalline diamond compact insert

Directable nozzle for rock drilling bits

Modular kerfing drill bit

Stepped polycrystalline diamond compact insert

Sharp gage for mill tooth rock bits