Inventor · Birtley, GB

John Perry

29Patents
5h-index
29Co-inventors
69Inventor score

Filing activity: Jun 8, 1981 → Nov 8, 2019

Most-cited inventions

PatentTitleAreaCited byStatus
US4396019A Vaginal myograph method and apparatus Human Necessities 51 Expired
US4934378A Bruxism method and apparatus using electrical signals Emerging Cross-Sectional Technologies 37 Expired
USD759478S1 Container General 20 Active
US6368817B1 Identification of salmonella Physics 13 Expired
USD784125S1 Container General 8 Active
US8334112B2 Medium for detecting and/or identifying bacteria Chemistry; Metallurgy 4 Active
USD770273S1 Container General 3 Active
US8420345B2 Method for identifying at least two groups of microorganisms Chemistry; Metallurgy 3 Active
USD743784S1 Container General 3 Active
US7420054B2 Phenoxazinone derivatives as enzyme substrates and use thereof as indicator in the detection of microorganisms with peptidase activity Chemistry; Metallurgy 3 Expired
US4574119A Chrome-magnesite refractories and method of preparation Chemistry; Metallurgy 2 Expired
US7691601B2 Medium for detecting and/or identifying of microorganisms Chemistry; Metallurgy 2 Expired
US10494658B2 Medium for the specific detection of resistant microorganisms Chemistry; Metallurgy 1 Active
US9347888B2 Detection of bacteria exhibiting a resistance to carbapenems Chemistry; Metallurgy 0 Active
US8404460B2 Method for detecting and/or identifying Clostridium difficile Chemistry; Metallurgy 0 Active
US9969758B2 Antimicrobial compounds Human Necessities 0 Active
US11111518B2 Medium for the specific detection of resistant microorganisms Chemistry; Metallurgy 0 Active
US8883437B2 Nitroreductase enzymatic substrates Chemistry; Metallurgy 0 Active
US10077464B2 Micro-organism detection medium comprising at least one alkyl(thio)glycoside Physics 0 Active
US8592174B2 Peptidase substrates Chemistry; Metallurgy 0 Active
US8592175B2 Nitroreductase enzymatic substrates Chemistry; Metallurgy 0 Active
US11001873B2 Microorganism detection method comprising at least one alkyl(thio)glycoside Physics 0 Active
US8535903B2 Nitroreductase enzymatic substrates Chemistry; Metallurgy 0 Active
US10759571B2 Container for produce storage, packing and transport Performing Operations; Transporting 0 Active
US8535901B2 Peptidase substrates Physics 0 Active

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