Inventor
Joseph L. Womack
Inventor
Tigard, OR, US
Overview
Patents· 7 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H01Lprimary
H01LSemiconductor devices17%
H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h1017%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry13%
C07DHeterocyclic compounds13%
C23CCoating metallic material13%
Y02PClimate change mitigation technologies in the production or processing of goods13%
H01JElectric discharge tubes or discharge lamps8%
H10BElectronic memory devices8%
PatentTitleYear
10,475,627Carrier ring wall for reduction of back-diffusion of reactive species and suppression of local parasitic plasma ignition201910,214,816PECVD apparatus for in-situ deposition of film stacks20199,165,788'Post-deposition soft annealing'20158,895,415'Tensile stressed doped amorphous silicon'20146,524,991'Process for the direct oxidation of olefins to olefin oxides'20036,309,998'Process for the direct oxidation of olefins to olefin oxides'20016,031,116'Process for the direct oxidation of olefins to olefin oxides'2000Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2000–2001Patents assigned to DOW CHEMICAL CO (2)· patent assignee history
2000–2003Based in Oakland, CA, US· patent location history
2003Patents assigned to DOW GLOBAL TECHNOLOGIES INC (1)· patent assignee history
2014–2019Patents assigned to NOVELLUS SYSTEMS INC (3)· patent assignee history
2014–2019Based in Tigard, OR, US· patent location history
2019Patents assigned to LAM RES CORP (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| NOVELLUS SYSTEMS INC | 3 | 2014–2019 |
| DOW CHEMICAL CO | 2 | 2000–2001 |
| DOW GLOBAL TECHNOLOGIES INC | 1 | 2003 |
| LAM RES CORP | 1 | 2019 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tigard, OR, US | 4 | 2014–2019 |
| Oakland, California, US | 3 | 2000–2003 |