David Tyvoll
55Patents
15h-index
72Co-inventors
87Inventor score
Filing activity: Sep 20, 1999 → Dec 14, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7338637B2 | Microfluidic device with thin-film electronic devices | Emerging Cross-Sectional Technologies | 66 | Expired |
| US7459491B2 | Pigment dispersions that exhibit variable particle size or variable vicosity | Chemistry; Metallurgy | 56 | Active |
| US7217542B2 | Microfluidic system for analyzing nucleic acids | Performing Operations; Transporting | 53 | Expired |
| US7530352B2 | Inhalation device and method for delivering variable amounts of different components | Human Necessities | 51 | Expired |
| US7776559B2 | Disposable blood test device | Human Necessities | 34 | Active |
| US6886557B2 | Inhalation device and method for delivering variable amounts of different components | Human Necessities | 30 | Expired |
| US6176908A | Aqueous ink jet inks for postal metering | Chemistry; Metallurgy | 27 | Expired |
| US7497334B2 | Sorting particles | Emerging Cross-Sectional Technologies | 23 | Active |
| US7390388B2 | Method of sorting cells on a biodevice | Physics | 23 | Active |
| US7389879B2 | Sorting particles | Emerging Cross-Sectional Technologies | 20 | Expired |
| US7591889B2 | Dissimilar pigments for use in dark and light inkjet inks | Chemistry; Metallurgy | 18 | Active |
| US7726303B2 | Controlled medicament ejection | Human Necessities | 18 | Expired |
| US6648951B2 | Waterfest, environmentally friendly inks adapted for point-of-sale ink-jet applications | Chemistry; Metallurgy | 17 | Expired |
| US7390387B2 | Method of sorting cells in series | Physics | 17 | Active |
| US7005003B2 | Inkjet inks having cyan, yellow, magenta, and/or black colorants and methods of using the same to produce black and white images | Chemistry; Metallurgy | 16 | Expired |
| US6783580B2 | Environmentally friendly, reliable, fast drying ink for point-of-sale thermal ink jet application | Chemistry; Metallurgy | 14 | Expired |
| US7384791B2 | Method of analyzing blood | Emerging Cross-Sectional Technologies | 14 | Active |
| US7275534B2 | Medicament ejector with ejection port servicing | Performing Operations; Transporting | 10 | Expired |
| US6572226B2 | Anisotropic colorants for inkjet printing | Chemistry; Metallurgy | 8 | Expired |
| US7220303B2 | Pigmented inks having different particle sizes and/or morphologies and distinct chemical dispersions | Chemistry; Metallurgy | 8 | Expired |
| US7741123B2 | Microfluidic device with thin-film electronic devices | Emerging Cross-Sectional Technologies | 8 | Active |
| US7294183B2 | Activating agents for use with reactive colorants in inkjet printing of textiles | Textiles; Paper | 7 | Expired |
| US9221261B2 | Printer having sled providing wiping, capping and platen modules | Performing Operations; Transporting | 6 | Active |
| US8056556B2 | Inhaler nozzle maintenance apparatus and method | Human Necessities | 6 | Active |
| US7932098B2 | Microfluidic system utilizing thin-film layers to route fluid | Emerging Cross-Sectional Technologies | 6 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.