Inventor · Calgary, AB, CA

Patrick J. McDougall

15Patents

3h-index

11Co-inventors

53Inventor score

Filing activity: Mar 31, 2010 → Feb 21, 2023

Most-cited inventions

Patent	Title	Area	Cited by	Status
US10538976B2	Floor wrench for a drilling rig	Fixed Constructions	6	Active
US10309169B2	Spinner wrench for a drilling rig	Emerging Cross-Sectional Technologies	5	Active
US11608694B2	Floor wrench for a drilling rig	Fixed Constructions	3	Active
US10247279B2	Integrated roller-gearbox for spinner wrench	Mechanical Engineering; Lighting; Heating	2	Active
US10718171B2	Modified die block for drilling rig floor wrench	Fixed Constructions	2	Active
US8859474B2	Lubricating oil compositions containing epoxide antiwear agents	Chemistry; Metallurgy	1	Active
US10480264B2	Transitioning pipe handler	Fixed Constructions	1	Active
US8486873B2	Lubricating oil compositions containing epoxide antiwear agents	Chemistry; Metallurgy	1	Active
US8969484B2	Methods of producing mono- and multi-functional polymers from terpene-based initiators	Chemistry; Metallurgy	1	Active
US9115237B2	Viscosity improver grafted with unsaturated acylating agent and an aryloxyalylkene monoamine	Chemistry; Metallurgy	1	Active
US9234153B2	Viscosity improver grafted with unsaturated acylating agent and a polyaromatic hydrocarbon	Chemistry; Metallurgy	0	Active
US12060752B2	Floor wrench for a drilling rig	Fixed Constructions	0	Active
US9035097B2	Aminoethylation process having improved yield of aryloxyalkylene amine compounds and reduced urea by-products	Chemistry; Metallurgy	0	Active
US9006160B2	Lubricating oil compositions containing epoxide antiwear agents	Chemistry; Metallurgy	0	Active
US8349777B2	Lubricating composition containing 1,3-dioxolane-4-methanol compounds as antiwear additives	Chemistry; Metallurgy	0	Active

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