Inventor · Kelkheim, DE

Dirk Freund

9Patents
5h-index
15Co-inventors
56Inventor score

Filing activity: Dec 23, 1998 → Mar 21, 2008

Most-cited inventions

PatentTitleAreaCited byStatus
US7367126B2 Powered wet-shaving razor Performing Operations; Transporting 16 Expired
US7214193B2 Method and measuring device for determining blood pressure Human Necessities 12 Expired
US6712769B2 Blood pressure monitoring device with inclination sensor Human Necessities 11 Expired
US7963921B1 Method and measuring device for determining blood pressure Human Necessities 6 Expired
US7703209B2 Powered wet-shaving razor Performing Operations; Transporting 6 Active
US6893402B2 Method and measuring device for determining blood pressure Human Necessities 5 Expired
US6559625B2 Circuit arrangement and electrical appliance with an inductive load and a buck converter Electricity 5 Expired
US7628759B2 Blood pressure measurement device Human Necessities 3 Active
US6843773B2 Blood pressure monitoring device and method of manufacturing a parts mounting module of a blood pressure monitoring device Human Necessities 1 Expired

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