Inventor · Shirley, MA, US

John Willis

15Patents
13h-index
14Co-inventors
75Inventor score

Filing activity: Oct 28, 1981 → Feb 22, 2005

Most-cited inventions

PatentTitleAreaCited byStatus
US6314317A Electroactive pore Human Necessities 326 Expired
US6063589A Devices and methods for using centripetal acceleration to drive fluid movement on a microfluidics system Emerging Cross-Sectional Technologies 309 Expired
US6406455B1 Injection devices Human Necessities 230 Expired
US6302134A Device and method for using centripetal acceleration to device fluid movement on a microfluidics system Emerging Cross-Sectional Technologies 214 Expired
US6616627B2 Injection device Human Necessities 167 Expired
US5747666A Point-of-care analyzer module Physics 163 Expired
US6490483B2 Electroactive pore Human Necessities 127 Expired
US6960184B2 Injection devices Human Necessities 111 Expired
US4713165A Sensor having ion-selective electrodes Emerging Cross-Sectional Technologies 97 Expired
US7187969B2 Electroactive pore Human Necessities 83 Expired
US6548788B2 Devices and methods for using centripetal acceleration to drive fluid movement in a microfluidics system Emerging Cross-Sectional Technologies 41 Expired
US4361473A Potassium ion-selective membrane electrode Physics 19 Expired
US7806867B2 Injection device Human Necessities 15 Active
US6719682B2 Electronic spindle for using centripetal acceleration to drive fluid movement in a microfluidics system Emerging Cross-Sectional Technologies 12 Expired
US7740607B2 Modular units for use in an injection device Human Necessities 9 Expired

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