Inventor
Michael Walter Legenza
Inventor
Bellingham, MA, US
Overview
Patents· 7 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G03Fprimary
G03FPhotomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devices33%
C11DDetergent compositions28%
H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h1022%
C23GCleaning or de-greasing of metallic material by chemical methods other than electrolysis17%
PatentTitleYear
8,440,599'Composition for stripping and cleaning and use thereof'20138,357,646'Stripper for dry film removal'20138,030,263'Composition for stripping and cleaning and use thereof'20117,700,533'Composition for removal of residue comprising cationic salts and methods using same'20107,687,447'Semi-aqueous stripping and cleaning composition containing aminobenzenesulfonic acid'20107,674,755'Formulation for removal of photoresist, etch residue and BARC'20104,806,453'Positive acting bilayer photoresist development'1989Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1989–2013Based in Bellingham, MA, US· patent location history
2010–2013Patents assigned to AIR PROD & CHEM (6)· patent assignee history
2013Patents assigned to EGBE MATTHEW I (2)· patent assignee history
2013Patents assigned to LEGENZA MICHAEL WALTER (2)· patent assignee history
2013Patents assigned to LEE YI CHIA (1)· patent assignee history
2013Patents assigned to LIAO ARCHIE (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| AIR PROD & CHEM | 6 | 2010–2013 |
| EGBE MATTHEW I | 2 | 2013 |
| LEGENZA MICHAEL WALTERself | 2 | 2013 |
| LEE YI CHIA | 1 | 2013 |
| LIAO ARCHIE | 1 | 2013 |
Locations
| Location | Patents | Span |
|---|---|---|
| Bellingham, Massachusetts, US | 7 | 1989–2013 |