Patent assignee · FR · COMPANY

H.E.F.

42Patents
42Active
42Granted
54Portfolio score

Filing activity: Oct 21, 2005 → Jul 30, 2020 · 16 expiring within 5 years

Most-cited patents

PatentTitleAreaCited byStatus
US7938582B2 Self-lubricating guiding member Mechanical Engineering; Lighting; Heating 9 Active
US8859078B2 Friction piece in a lubricated medium, working at contact pressures higher than 200 MPa Emerging Cross-Sectional Technologies 6 Active
US8728287B2 Oxynitride sputtering target Emerging Cross-Sectional Technologies 4 Active
US8092092B2 Guide member Mechanical Engineering; Lighting; Heating 3 Active
US9441669B2 Guiding body in the form of a ring for friction mounting, with an articulating and/or element-sliding capacity Mechanical Engineering; Lighting; Heating 2 Active
US8722197B2 Sliding mating part in lubricated regime, coated by a thin film Emerging Cross-Sectional Technologies 2 Active
US9611534B2 Molten-salt bath for nitriding mechanical parts made of steel, and implementation method Chemistry; Metallurgy 1 Active
US9464346B2 Method for cooling metal parts having undergone a nitriding/nitrocarburising treatment in a molten salt bath, unit for implementing said method and the treated metal parts Chemistry; Metallurgy 1 Active
US8728588B2 Method of treating a surface of at least one part by means of individual sources of an electron cyclotron resonance plasma Electricity 1 Active
US8770844B2 Self-lubricating bushing for a joint, which is intended to be mounted on a shaft Mechanical Engineering; Lighting; Heating 1 Active
US8395091B2 Method for fabricating a heating element by depositing thin layers on an insulating substrate and the element thus obtained Emerging Cross-Sectional Technologies 1 Active
US10774414B2 Method for surface treatment of a steel component by nitriding or nitrocarburising, oxidising and then impregnating Chemistry; Metallurgy 1 Active
US9103016B2 Part having a DLC coating and method for applying the DLC coating Emerging Cross-Sectional Technologies 1 Active
US9790984B2 Self-lubricating hinge assembly made from composite material and operating under high dynamic loads Mechanical Engineering; Lighting; Heating 1 Active
US9989096B2 Self-lubricating articulation element made from a composite material and operating under high dynamic loadings Mechanical Engineering; Lighting; Heating 1 Active
US10683777B2 Method for coating the nose of the cams of a camshaft with DLC, camshaft obtained in this way and facility for implementing said method Mechanical Engineering; Lighting; Heating 1 Active
US9284509B2 Friction piece operating in a lubricated medium Chemistry; Metallurgy 0 Active
US9273386B2 Pair of guiding elements of which one is made of specific steel leading to improved anti-seizing performances Mechanical Engineering; Lighting; Heating 0 Active
US10969679B2 System and method for producing an optical mask for surface microtexturing, and surface microtexturing plant and method Physics 0 Active
US11111400B2 Multimaterial powder with composite grains for additive synthesis Emerging Cross-Sectional Technologies 0 Active
US7758963B2 Corrosion resistant coating based on silicon, carbon, hydrogen and nitrogen Emerging Cross-Sectional Technologies 0 Active
US10125868B2 Piston pin and method of applying an anti-seize coating on the pin Chemistry; Metallurgy 0 Active
US9490102B2 Device for generating plasma having a high range along an axis by electron cyclotron resonance (ECR) from a gaseous medium Electricity 0 Active
US10858720B2 Method for treatng a nitrided/nitrocarburised part Performing Operations; Transporting 0 Active
US11098674B2 Piston for a heat engine, heat engine comprising such a piston, and methods Mechanical Engineering; Lighting; Heating 0 Active

Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.