Inventor · Sugar Land, TX, US

Michael Brian Grayson

23Patents
12h-index
30Co-inventors
81Inventor score

Filing activity: Jul 12, 1995 → Feb 7, 2017

Most-cited inventions

PatentTitleAreaCited byStatus
US6129152A Rotating bop and method Fixed Constructions 119 Expired
US5603384A Universal perforating gun firing head Fixed Constructions 98 Expired
US7219729B2 Permanent downhole deployment of optical sensors Fixed Constructions 67 Expired
US7255173B2 Instrumentation for a downhole deployment valve Fixed Constructions 54 Expired
US7350590B2 Instrumentation for a downhole deployment valve Fixed Constructions 51 Expired
US6082707A Valve seat and method Mechanical Engineering; Lighting; Heating 48 Expired
US7475732B2 Instrumentation for a downhole deployment valve Fixed Constructions 41 Active
US5551520A Dual redundant detonating system for oil well perforators Fixed Constructions 40 Expired
US9249646B2 Managed pressure cementing Fixed Constructions 23 Active
US8261836B2 Downhole deployment valves Emerging Cross-Sectional Technologies 19 Active
US8899348B2 Surface gas evaluation during controlled pressure drilling Fixed Constructions 17 Active
US7997340B2 Permanent downhole deployment of optical sensors Fixed Constructions 14 Active
US7665543B2 Permanent downhole deployment of optical sensors Fixed Constructions 10 Active
US7306042B2 Method for completing a well using increased fluid temperature Fixed Constructions 9 Expired
US10329860B2 Managed pressure drilling system having well control mode Fixed Constructions 6 Active
US10107075B2 Downhole isolation valve Fixed Constructions 2 Active
US6059262A Valve operator and method Mechanical Engineering; Lighting; Heating 2 Expired
US8522878B2 Downhole deployment valves Emerging Cross-Sectional Technologies 2 Active
US8544549B2 Downhole deployment valves Emerging Cross-Sectional Technologies 2 Active
US9951600B2 Managed pressure cementing Fixed Constructions 1 Active
US8534362B2 Downhole deployment valves Emerging Cross-Sectional Technologies 1 Active
US8905140B2 Downhole deployment valves Emerging Cross-Sectional Technologies 0 Active
US8789603B2 Downhole deployment valves Emerging Cross-Sectional Technologies 0 Active

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.