Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10453697 | Methods of measuring electrical characteristics during plasma etching | Daniel Kwadwo Amponsah Berkoh, Elena Becerra Woodard | 2019-10-22 |
| 10083838 | Methods of measuring electrical characteristics during plasma etching | Daniel Kwadwo Amponsah Berkoh, Elena Becerra Woodard | 2018-09-25 |
| 9905484 | Methods for shielding a plasma etcher electrode | Daniel Kwadwo Amponsah Berkoh, Elena Becerra Woodard | 2018-02-27 |
| 9711364 | Methods for etching through-wafer vias in a wafer | Daniel Kwadwo Amponsah Berkoh, Elena Becerra Woodard | 2017-07-18 |
| 9478428 | Apparatus and methods for shielding a plasma etcher electrode | Daniel Kwadwo Amponsah Berkoh, Elena Becerra Woodard | 2016-10-25 |
| 8357263 | Apparatus and methods for electrical measurements in a plasma etcher | Daniel Kwadwo Amponsah Berkoh, Elena Becerra Woodard | 2013-01-22 |
| 4806010 | Multifocal lens | Ronald W. Ewer, deceased, Kevin Douglas O'Connor | 1989-02-21 |