Inventor · Middletown, MD, US

Christian E. Johnson

12Patents
8h-index
12Co-inventors
69Inventor score

Filing activity: Apr 20, 1979 → Feb 24, 1999

Most-cited inventions

PatentTitleAreaCited byStatus
US4699000A Automated device for determining and evaluating the mechanical properties of materials Physics 45 Expired
US6254757A Method for electrochemical fluidized bed coating of powders Emerging Cross-Sectional Technologies 37 Expired
US5711866A Acid assisted cold welding and intermetallic formation and dental applications thereof Performing Operations; Transporting 36 Expired
US4361630A Ultra-black coating due to surface morphology Emerging Cross-Sectional Technologies 20 Expired
US4233107A Ultra-black coating due to surface morphology Emerging Cross-Sectional Technologies 16 Expired
US5415763A Methods and electrolyte compositions for electrodepositing chromium coatings Chemistry; Metallurgy 14 Expired
US5603815A Electrochemical fluidized bed coating of powders Emerging Cross-Sectional Technologies 13 Expired
US6110254A Method for chemical precipitation of metallic silver powder via a two solution technique Emerging Cross-Sectional Technologies 8 Expired
US5759243A Methods and electrolyte compositions for electrodepositing metal-carbon alloys Chemistry; Metallurgy 5 Expired
US5672262A Methods and electrolyte compositions for electrodepositing metal-carbon alloys Chemistry; Metallurgy 2 Expired
US6001289A Acid assisted cold welding and intermetallic formation Performing Operations; Transporting 1 Expired
US6375894B1 Acid assisted cold welding and intermetallic formation and dental applications thereof Performing Operations; Transporting 0 Expired

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