Inventor · Mequon, WI, US

William G. Johnson

24Patents
12h-index
6Co-inventors
74Inventor score

Filing activity: Apr 26, 1994 → Apr 3, 2015

Most-cited inventions

PatentTitleAreaCited byStatus
USD364104S Extrusion for a box beam level General 39 Expired
USD555523S1 Level General 27 Expired
USD634221S1 Level General 25 Expired
USD750511S1 Box beam level General 23 Active
USD582302S1 Level General 22 Expired
USD633400S1 Level General 21 Expired
USD777589S1 Torpedo level General 17 Active
US7770298B1 Securement arrangement for a level end cap Physics 17 Active
USD751428S1 Torpedo level General 17 Active
USD743281S1 Box beam level General 15 Active
USD751430S1 Box beam level General 14 Active
USD656425S1 Hand grip for a level General 14 Expired
USD729645S1 Torpedo level General 12 Active
USD751429S1 I-beam level General 11 Active
USD750512S1 Level General 10 Active
USD743818S1 Box beam level General 9 Active
USD723956S1 Torpedo level General 9 Active
USD726041S1 Measuring wheel General 7 Active
USD726040S1 Measuring wheel General 6 Active
USD735063S1 Level General 4 Active
USD735062S1 Level General 3 Active
USD726039S1 Measuring wheel General 2 Active
USD726038S1 Measuring wheel General 1 Active
USD751427S1 I-beam level General 0 Active

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