Donald E. Wenzel
17Patents
11h-index
25Co-inventors
72Inventor score
Filing activity: Feb 24, 1975 → Jun 6, 2002
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5426458A | Poly-p-xylylene films as an orifice plate coating | Emerging Cross-Sectional Technologies | 85 | Expired |
| US6162589A | Direct imaging polymer fluid jet orifice | Performing Operations; Transporting | 64 | Expired |
| US6203146A | Printing system with air accumulation control means enabling a semipermanent printhead without air purge | Performing Operations; Transporting | 54 | Expired |
| US4786327A | Dye preparation for thermal ink-jet printheads using ion exchange | Chemistry; Metallurgy | 35 | Expired |
| US3985659A | Drilling fluid composition | Chemistry; Metallurgy | 28 | Expired |
| US5700315A | Anti-outgassing ink composition and method for using the same | Performing Operations; Transporting | 19 | Expired |
| US5473354A | Ink-delivery apparatus | Performing Operations; Transporting | 16 | Expired |
| US6447102B1 | Direct imaging polymer fluid jet orifice | Performing Operations; Transporting | 15 | Expired |
| US6382784B2 | Printing system with air accumulation control means enabling a semipermanent printhead without air purge | Performing Operations; Transporting | 14 | Expired |
| US5341160A | Valve for ink-jet pen | Emerging Cross-Sectional Technologies | 14 | Expired |
| US5808637A | Method and apparatus for ink drop trajectory control | Performing Operations; Transporting | 12 | Expired |
| US6520627B2 | Direct imaging polymer fluid jet orifice | Performing Operations; Transporting | 5 | Expired |
| US6378981B1 | Surfactant for inkjet service station wiper fluid | Performing Operations; Transporting | 4 | Expired |
| US6902259B2 | Direct imaging polymer fluid jet orifice | Performing Operations; Transporting | 3 | Expired |
| US7270407B2 | Methods for digitally printing on ceramics | Chemistry; Metallurgy | 2 | Expired |
| US4045421A | Lignin dispersant | Chemistry; Metallurgy | 2 | Expired |
| US6056396A | Anti-outgassing ink composition and method for using the same | Performing Operations; Transporting | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.