David Schaefer
19Patents
4h-index
27Co-inventors
60Inventor score
Filing activity: Mar 27, 2003 → Oct 6, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7477756B2 | Isolating deep canal fitting earphone | Electricity | 84 | Active |
| US10109460B2 | Universal non-invasive chamber impedance measurement system and associated methods | Electricity | 7 | Active |
| US9869392B2 | Edge seal for lower electrode assembly | Emerging Cross-Sectional Technologies | 6 | Active |
| US9859142B2 | Edge seal for lower electrode assembly | Emerging Cross-Sectional Technologies | 4 | Active |
| US10804081B2 | Edge ring dimensioned to extend lifetime of elastomer seal in a plasma processing chamber | Electricity | 4 | Active |
| US7205226B1 | Sacrificial layer for protection during trench etch | Electricity | 4 | Expired |
| US8844106B2 | Installation fixture for elastomer bands and methods of using the same | Emerging Cross-Sectional Technologies | 3 | Active |
| US10857467B2 | Network gaming ride attraction | Human Necessities | 2 | Active |
| US7622051B1 | Methods for critical dimension control during plasma etching | Electricity | 2 | Expired |
| US11781650B2 | Edge seal for lower electrode assembly | Emerging Cross-Sectional Technologies | 1 | Active |
| US9583377B2 | Installation fixture for elastomer bands | Emerging Cross-Sectional Technologies | 1 | Active |
| US9790582B2 | Long lifetime thermal spray coating for etching or deposition chamber application | Electricity | 1 | Active |
| US7479457B2 | Gas mixture for removing photoresist and post etch residue from low-k dielectric material and method of use thereof | Physics | 1 | Expired |
| US12368025B2 | Edge seal for lower electrode assembly | Emerging Cross-Sectional Technologies | 0 | Active |
| US9054148B2 | Method for performing hot water seal on electrostatic chuck | Emerging Cross-Sectional Technologies | 0 | Active |
| US9947512B2 | Window and mounting arrangement for twist-and-lock gas injector assembly of inductively coupled plasma chamber | Electricity | 0 | Active |
| US11794121B1 | Theme or amusement park attraction using high frame rate active shutter technology | Electricity | 0 | Active |
| US11992779B2 | Networked games, rides and attractions | Human Necessities | 0 | Active |
| US9355884B2 | Installation fixture for elastomer bands and methods of using the same | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.