Inventor · Douglas, IM

Robert William Stimpson

37Patents
10h-index
9Co-inventors
60Inventor score

Filing activity: Aug 12, 2003 → Nov 29, 2011

Most-cited inventions

PatentTitleAreaCited byStatus
US8677521B2 Shower floor formers Human Necessities 26 Active
USD494767S1 Shower seat General 22 Expired
US8096002B2 Height adjustable shower waste Fixed Constructions 21 Active
USD495506S1 Shower seat General 21 Expired
USD608018S1 Modular heavy duty grab rail General 17 Expired
USD510487S1 Shower seat General 15 Expired
USD590481S1 Pipe coupling with flow sensor and filter General 14 Expired
USD501611S1 Shower seat General 14 Expired
USD580188S1 Foldable shower seat General 11 Expired
US7900294B2 Shower tray access ramp Emerging Cross-Sectional Technologies 10 Active
US7694358B2 Shower tray Human Necessities 10 Expired
USD658278S1 Toilet General 9 Expired
USD591427S1 Modular heavy-duty grab rail General 9 Expired
US8037556B2 Shower cubicles Mechanical Engineering; Lighting; Heating 9 Active
USD656229S1 Toilet General 8 Expired
USD596278S1 Drop down hand rail General 8 Expired
USD615559S1 Shower drain pump controller housing General 6 Expired
US7975328B2 Upward discharge waste device for a shower tray Fixed Constructions 6 Active
US8096001B2 Pumped drainage apparatus Fixed Constructions 6 Active
US8015912B2 Diaphragm pump having a twist and lock fastener Mechanical Engineering; Lighting; Heating 5 Active
US8006325B2 Pumped shower drain system Emerging Cross-Sectional Technologies 4 Active
USD615558S1 Shower pump housing General 4 Expired
US8480883B2 Pipe coupling with integrated filter and flow detector Emerging Cross-Sectional Technologies 3 Active
USD607014S1 Combined interior of a shower drain pump housing with interior compartments and a cover for an interior compartment of a shower drain pump housing General 3 Expired
US8813273B2 Waste water outlet unit Fixed Constructions 2 Active

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