Inventor · Florence, SC, US

David C. Griffin

21Patents
8h-index
24Co-inventors
75Inventor score

Filing activity: Dec 18, 1995 → Jan 10, 2019

Most-cited inventions

PatentTitleAreaCited byStatus
US6427894B1 Electrode wire feeder for an arc welding system Performing Operations; Transporting 50 Expired
US6081423A Power supply with obliquely impinging airflow Electricity 37 Expired
US5747773A Arc welder power source Performing Operations; Transporting 33 Expired
US6969819B1 Plasma arc torch Electricity 31 Expired
US7435925B2 Plasma arc torch Electricity 29 Active
US7103579B1 Internet based check cashing and clearing method, apparatus and article of manufacture Physics 25 Expired
US8633417B2 Electrode for plasma torch with novel assembly method and enhanced heat transfer Electricity 24 Active
US7179036B2 Fastening arrangement employing thread-forming screw Mechanical Engineering; Lighting; Heating 10 Expired
US8258424B2 Plasma torch with electrode wear detection system Electricity 7 Active
US7105770B2 Plasma arc torch Electricity 7 Expired
US8633415B2 Plasma torch with electrode wear detection system Electricity 3 Active
US8283594B2 System and method for supplying fluids to a plasma arc torch Electricity 2 Active
US9288888B2 Plasma torch with reversible baffle Electricity 2 Active
US6170687A Apparatus packaging enclosure Human Necessities 2 Expired
US7470872B2 Cooling device and system for a plasma arc torch and associated method Electricity 2 Active
USD437553S Apparatus packaging enclosure General 1 Expired
US8624149B2 Plasma torch with reversible baffle Electricity 1 Active
US8729423B2 System and method for supplying fluids to a plasma arc torch Electricity 1 Active
US8779323B2 Electrode for plasma torch with novel assembly method and enhanced heat transfer Electricity 1 Active
US10743399B2 Reducing restart cycle time of a plasma blow back torch for improved marking Electricity 0 Active
US11160157B2 Plasma device consumable part change detection Performing Operations; Transporting 0 Active

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