Inventor
John G. Harpold
Inventor
Bellvue, CO, US
Overview
Patents· 4 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H01Jprimary
H01JElectric discharge tubes or discharge lamps44%
C23CCoating metallic material22%
H03KPulse technique11%
H05BElectric heating11%
H05HPlasma technique11%
PatentTitleYear
6,633,017'System for plasma ignition by fast voltage rise'20035,009,764'Apparatus for removal of electrical shorts in a sputtering system'19914,963,238'Method for removal of electrical shorts in a sputtering system'19904,936,960'Method and apparatus for recovery from low impedance condition during cathodic arc processes'1990Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1990–2003Patents assigned to ADVANCED ENERGY IND INC (3)· patent assignee history
1990Patents assigned to HARPOLD JOHN G (1)· patent assignee history
1990Patents assigned to SCHATZ DOUGLAS S (1)· patent assignee history
1990Patents assigned to SIEFKES JERRY D (1)· patent assignee history
1990–2003Based in Bellvue, CO, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| ADVANCED ENERGY IND INC | 3 | 1990–2003 |
| HARPOLD JOHN Gself | 1 | 1990 |
| SCHATZ DOUGLAS S | 1 | 1990 |
| SIEFKES JERRY D | 1 | 1990 |
Locations
| Location | Patents | Span |
|---|---|---|
| Bellvue, CO, US | 4 | 1990–2003 |