Mark Williamson
26Patents
8h-index
47Co-inventors
75Inventor score
Filing activity: Apr 15, 1991 → Mar 8, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5482446A | Ambulatory infusion pump | Human Necessities | 652 | Expired |
| US5551850A | Pump chamber and valve assembly | Human Necessities | 417 | Expired |
| US6550493B2 | Vacuum demand valve | Emerging Cross-Sectional Technologies | 53 | Expired |
| US10434253B2 | Infusion pump system with disposable cartridge having pressure venting and pressure feedback | Physics | 45 | Active |
| US8926561B2 | Infusion pump system with disposable cartridge having pressure venting and pressure feedback | Physics | 40 | Active |
| US6273133A | Fluid flow rate switching device | Emerging Cross-Sectional Technologies | 21 | Expired |
| US6712095B2 | Vacuum demand valve | Emerging Cross-Sectional Technologies | 19 | Expired |
| US6554023B2 | Vacuum demand flow valve | Emerging Cross-Sectional Technologies | 13 | Expired |
| US11135362B2 | Infusion pump systems and methods | Physics | 7 | Active |
| US8814130B2 | Discharge flow control valve | Human Necessities | 6 | Active |
| US9889248B2 | Syringe storage tray | Human Necessities | 5 | Active |
| US6863083B2 | Vacuum demand flow valve | Emerging Cross-Sectional Technologies | 5 | Expired |
| US7802589B2 | Multirate tubing flow control valve | Emerging Cross-Sectional Technologies | 5 | Active |
| US7690396B2 | Multirate tubing flow restrictor | Emerging Cross-Sectional Technologies | 5 | Active |
| US5162778A | Portable personal property protector | Physics | 4 | Expired |
| US8543696B1 | Network access | Electricity | 4 | Active |
| US6684903B2 | Vacuum demand valve | Emerging Cross-Sectional Technologies | 4 | Expired |
| US11285263B2 | Infusion pump systems and methods | Physics | 3 | Active |
| US9808570B2 | Syringe storage tray | Human Necessities | 2 | Active |
| US6672333B2 | Vacuum demand valve | Emerging Cross-Sectional Technologies | 1 | Expired |
| US10357605B2 | Infusion pump system with disposable cartridge having pressure venting and pressure feedback | General | 0 | Revoked |
| US6604545B2 | Vacuum demand valve | Emerging Cross-Sectional Technologies | 0 | Expired |
| US12144964B2 | Infusion pump system with disposable cartridge having pressure venting and pressure feedback | Physics | 0 | Active |
| US6679288B2 | Vacuum demand valve | Emerging Cross-Sectional Technologies | 0 | Expired |
| US11747359B2 | Humidity measurement | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.