Inventor · Coventry, GB

John G. Birch

29Patents
13h-index
18Co-inventors
78Inventor score

Filing activity: Aug 17, 1993 → Apr 10, 2018

Most-cited inventions

PatentTitleAreaCited byStatus
US8864750B2 Tool and method for external fixation strut adjustment Human Necessities 740 Active
US5681309A Distractor mechanism for external fixation device Human Necessities 107 Expired
US5451225A Fastener for external fixation device wires and pins Human Necessities 99 Expired
US5630814A Fastener for external fixation device wires and pins Human Necessities 79 Expired
US5968043A Plastic double nut mechanism enabling rigid orthopedic distraction Human Necessities 74 Expired
US8439914B2 External fixation strut Human Necessities 71 Active
US5431659A Pneumatic wire tensioner Human Necessities 69 Expired
US5766173A Distractor mechanism for external fixation device Human Necessities 66 Expired
US8574232B1 External fixation connection rod for rapid and gradual adjustment Human Necessities 55 Active
US8444644B2 Fast adjust external fixation connection rod Human Necessities 37 Active
US9078700B2 Fast adjust external fixation connection rod Human Necessities 30 Active
US9155559B2 External fixator strut Human Necessities 18 Active
US9289238B2 Dynamization module for external fixation strut Human Necessities 14 Active
US9717530B1 External fixation struts Human Necessities 10 Active
US8386418B2 System and method for an intelligent storage service catalog Physics 8 Active
US9456849B2 Fast adjust external fixation connection rod Human Necessities 6 Active
US9445841B2 Wire tensioner tip for use with wire fixation bolt Human Necessities 6 Active
US9381042B2 External fixation connection rod for rapid and gradual adjustment Human Necessities 5 Active
US9808289B2 External fixator ring Emerging Cross-Sectional Technologies 4 Active
US7979513B2 Method and system for determining a management complexity factor for delivering services in an environment Electricity 4 Active
US9295493B2 External fixator ring Emerging Cross-Sectional Technologies 4 Active
US10603076B2 Dynamization device for orthopedic fixation device Human Necessities 3 Active
US10080586B2 Dynamization module for external fixation strut Human Necessities 3 Active
US9681892B2 External fixator strut Human Necessities 2 Active
US10130391B2 External fixation struts Human Necessities 2 Active

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