US Patent No: 7,726,415

Number of patents in Portfolio can not be more than 2000

Fixed cutter drill bit

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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The fixed cutter drill bit disclosed utilizes a unique piloting section and reaming section carefully designed to impart several specific operational advantages. In the piloting section, cutting structures have been arranged so as to create offsetting cutting forces that result in a net zero imbalance during operation. Furthermore, the piloting section utilizes carefully placed shock studs which aid in protecting the primary cutting structure. In addition, the location of the fluid supply nozzles on the body of the reamer section serves to indicate the occurrence of a catastrophic cutting structure failure below the pilot gage.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
OTS INTERNATIONAL, INC.CONROE, TX1

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Keith, Carl W Spring, TX 27 696
Strenk,, Jr Gerald A - 1 1
Tipton, Robert George - 1 1

Cited Art Landscape

Patent Info (Count) # Cites Year
 
SMITH INTERNATIONAL, INC. (14)
5,582,261 Drill bit having enhanced cutting structure and stabilizing features 43 1994
5,549,171 Drill bit with performance-improving cutting structure 64 1994
5,592,996 Drill bit having improved cutting structure with varying diamond density 17 1994
5,551,522 Drill bit having stability enhancing cutting structure 33 1994
5,607,024 Stability enhanced drill bit and cutting structure having zones of varying wear resistance 93 1995
5,607,025 Drill bit and cutting structure having enhanced placement and sizing of cutters for improved bit stabilization 34 1995
5,737,980 Brazing receptacle for improved PCD cutter retention 10 1996
5,906,246 PDC cutter element having improved substrate configuration 28 1996
6,164,394 Drill bit with rows of cutters mounted to present a serrated cutting edge 26 1996
5,937,958 Drill bits with predictable walk tendencies 45 1997
6,148,937 PDC cutter element having improved substrate configuration 10 1997
6,918,455 Drill bit with large inserts 5 1998
6,564,886 Drill bit with rows of cutters mounted to present a serrated cutting edge 19 2000
6,729,420 Multi profile performance enhancing centric bit and method of bit design 85 2002
 
HALLIBURTON ENERGY SERVICES, INC. (4)
5,090,492 Drill bit with vibration stabilizers 52 1991
5,265,685 Drill bit with improved insert cutter pattern 42 1991
5,238,075 Drill bit with improved cutter sizing pattern 34 1992
5,346,025 Drill bit with improved insert cutter pattern and method of drilling 23 1993
 
BAKER HUGHES INCORPORATED (2)
6,408,958 Superabrasive cutting assemblies including cutters of varying orientations and drill bits so equipped 68 2000
6,659,199 Bearing elements for drill bits, drill bits so equipped, and method of drilling 15 2001
 
DRESSER INDUSTRIES, INC. (2)
4,911,254 Polycrystalline diamond cutting element with mating recess 18 1989
5,099,929 Unbalanced PDC drill bit with right hand walk tendencies, and method of drilling right hand bore holes 42 1990
 
EASTMAN CHRISTENSEN COMPANY (1)
4,515,227 Nozzle placement in a diamond rotating bit including a pilot bit 32 1983
 
Team Engineering and Manufacturing, Inc. (1)
4,618,010 Hole opener 28 1986
 
VAREL INTERNATIONAL IND., L.P. (1)
6,904,983 Low-contact area cutting element 11 2003
 
VAREL INTERNATIONAL, INC. (1)
6,568,492 Drag-type casing mill/drill bit 31 2001
 
Varel International, L.P. (1)
6,926,099 Drill out bi-center bit and method for using same 13 2003

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
SMITH INTERNATIONAL, INC. (1)
8,100,202 Fixed cutter bit with backup cutter elements on secondary blades 7 2009

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
3.5 Year Payment $1600.00 $800.00 $400.00 Dec 1, 2013
7.5 Year Payment $3600.00 $1800.00 $900.00 Dec 1, 2017
11.5 Year Payment $7400.00 $3700.00 $1850.00 Dec 1, 2021
Fee Large entity fee small entity fee micro entity fee
Surcharge - 3.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00