U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

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Examiner: Suchfield, George


Primary examiner statistics: 254 patents; average approval time: 254 days
Assistant examiner statistics: 0 patents; average approval time: N/A

Patents as Primary Examiner (view all)

Patent No. Patent Title:
8186430 Method and system for extraction of hydrocarbons from oil sands
8176981 Fluorinated surfactants and methods of using the same
8176980 Method of gas-cap air injection for thermal oil recovery
8167042 Method of forming self-diverting high-rate water packs
8167036 Method for in-situ combustion of in-place oils
8167041 Apparatus and method for energy-efficient and environmentally-fri...
8167043 Degradable material assisted diversion or isolation
8167040 In situ combustion in gas over bitumen formations
8163414 Electrical device having a battery pack with an easy attachment a...
8162048 Method of delivering frac fluid and additives
8162057 Radiation-induced thickening for set-on-command sealant compositi...
8162058 Slag compositions and methods of use
8157010 Treatment of subterranean formations
8157009 Cement compositions and associated methods comprising sub-micron ...
8151876 Well stimulation
8151880 Methods of making transportation fuel
8153563 Cement compositions comprising stevia retarders
8146654 Composition and method for using waxy oil-external emulsions to m...
8148002 Electric storage device
8141640 System, method and apparatus for enhancing wellbore treatment flu...
8141638 Fracturing method and apparatus utilizing gelled isolation fluid
8141637 Manipulation of flow underground
8132632 Method for recovering valuable drilling mud materials using a bin...
8132620 Triangle air injection and ignition extraction method and system
8122959 Methods and materials for zonal isolation
8122953 Drainage of heavy oil reservoir via horizontal wellbore
8118096 Diluent-enhanced in-situ combustion hydrocarbon recovery process
8109335 Degradable diverting agents and associated methods
8104536 Kerogen extraction from subterranean oil shale resources
8104537 Method of developing subsurface freeze zone
8104535 Method of improving waterflood performance using barrier fracture...
8104538 Fracturing with telescoping members and sealing the annular space
8100190 Methods for swelling swellable elements in a portion of a well us...
8100179 Production and delivery of a fluid mixture to an annular volume o...
8096360 Alkaline β-mannanase containing compositions useful for the hydr...
8091641 Method and apparatus to cement a perforated casing
8091639 Geothermal well diversion agent formed from in situ decomposition...
8091632 Method and device for the in-situ extraction of a hydrocarbon-con...
8066058 System, method, and apparatus for breaking fracturing fluids
8061424 Method for hydraulic fracturing of subterranean formation

Patents as Assistant Examiner

Patent No. Patent Title:
No patents.
 
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