Inventor · Wilsonville, OR, US

Frederick Karl

37Patents
24h-index
33Co-inventors
85Inventor score

Filing activity: Mar 2, 2001 → Dec 11, 2023

Most-cited inventions

PatentTitleAreaCited byStatus
US7192405B2 Integrated lancet and bodily fluid sensor Emerging Cross-Sectional Technologies 148 Expired
US6740100B2 Tendon repair using adhesive Human Necessities 118 Expired
US7008382B2 Medical instrument Human Necessities 76 Expired
US7449000B2 Medical instrument Human Necessities 73 Expired
USD636837S1 Laser gunsight system for a firearm General 73 Expired
USD636049S1 Laser gunsight system for a firearm General 70 Expired
US6860890B2 Surgical knot pushing device and method of use Human Necessities 66 Expired
USD669553S1 Laser device General 61 Active
USD669958S1 Laser device General 61 Active
USD669959S1 Illumination device General 54 Active
USD687120S1 Laser device General 48 Active
USD674862S1 Illumination device General 45 Active
USD669957S1 Laser device General 45 Active
USD674861S1 Illumination device General 44 Active
USD669552S1 Laser device General 44 Active
US7517107B2 Blood tracking system Emerging Cross-Sectional Technologies 30 Active
US7600656B2 Personal hydration system Human Necessities 29 Active
US7022085B2 Medical instrument Human Necessities 29 Expired
US7290896B2 Blood tracking system Emerging Cross-Sectional Technologies 27 Expired
USD538030S1 Personal hydration system reservoir General 26 Expired
USD694848S1 Laser General 26 Active
US8006700B2 Soft tissue repair system Human Necessities 25 Expired
USD692518S1 Laser device General 24 Active
US7048408B2 Lighting head mechanism and filter Mechanical Engineering; Lighting; Heating 24 Expired
USD696376S1 Laser device General 24 Active

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