Inventor · Kohler, WI, US

David H. Ritter

17Patents

4h-index

13Co-inventors

57Inventor score

Filing activity: Mar 31, 1997 → Aug 14, 2023

Most-cited inventions

Patent	Title	Area	Cited by	Status
US6112186A	Distributed system for facilitating exchange of user information and opinion using automated collaborative filtering	Electricity	872	Expired
US8079381B2	Handle assembly for a water control valve	Emerging Cross-Sectional Technologies	29	Active
US8297305B2	Valve assembly having an improved flow path	Emerging Cross-Sectional Technologies	8	Active
US8800962B2	Valve assembly having improved connections	Emerging Cross-Sectional Technologies	8	Active
US10281049B2	Valve assembly	Emerging Cross-Sectional Technologies	2	Active
US7396283B2	Needle roller retainer for tripot joint	Emerging Cross-Sectional Technologies	2	Expired
US9958086B2	Faucet assembly	Mechanical Engineering; Lighting; Heating	2	Active
US11725373B2	Drain system for bathtub	Fixed Constructions	2	Active
US9476508B2	Valve assembly having improved rotational feel	Emerging Cross-Sectional Technologies	1	Active
US10138621B2	Handle assembly	Emerging Cross-Sectional Technologies	1	Active
US11300217B2	Faucet with improved valve	Mechanical Engineering; Lighting; Heating	1	Active
US11231116B2	Valve assembly	Emerging Cross-Sectional Technologies	0	Active
US11560957B2	Faucet with improved valve	Mechanical Engineering; Lighting; Heating	0	Active
US9086155B2	Valve assembly having improved rotational feel	Emerging Cross-Sectional Technologies	0	Active
US12385241B2	Drain system for bathtub	Fixed Constructions	0	Active
US9915367B2	Valve assembly having improved rotational feel	Emerging Cross-Sectional Technologies	0	Active
US11982362B2	Faucet with improved valve	Mechanical Engineering; Lighting; Heating	0	Active

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