Inventor
Andrew J. Watts
Inventor
Essex, VT, US
Overview
Patents· 14 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 devices93%
B67DDispensing, delivering or transferring liquids, not otherwise provided for7%
PatentTitleYear
8,423,918'Structure and methodology for fabrication and inspection of photomasks by a single design system'20137,745,069'Structure and methodology for fabrication and inspection of photomasks'20107,294,440'Method to selectively correct critical dimension errors in the semiconductor industry'20077,276,316'Common second level frame exposure methods for making embedded attenuated phase shift masks'20077,211,356'Method of patterning a substrate by feeding mask defect data forward for subsequent correction'20077,200,257'Structure and methodology for fabrication and inspection of photomasks'20077,110,195'Monolithic hard pellicle'20066,557,163'Method of photolithographic critical dimension control by using reticle measurements in a control algorithm'20036,387,596'Method of forming resist images by periodic pattern removal'20026,338,921'Mask with linewidth compensation and method of making same'20025,334,467'Gray level mask'19945,213,916'Method of making a gray level mask'19935,126,006'Plural level chip masking'19924,838,323'Misfuelling prevention device and method'1989Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1989Patents assigned to SHELL OIL CO (1)· patent assignee history
1989Based in Ince, GB· patent location history
1992–2013Patents assigned to IBM (13)· patent assignee history
1992–1994Based in Milton, VT, US· patent location history
2002–2013Based in Essex, VT, US· patent location history
2002–2007Based in Essex Junction, VT, US· patent location history
2013Patents assigned to RANKIN JED H (1)· patent assignee history
2013Patents assigned to WATTS ANDREW J (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| IBM | 13 | 1992–2013 |
| RANKIN JED H | 1 | 2013 |
| SHELL OIL CO | 1 | 1989 |
| WATTS ANDREW Jself | 1 | 2013 |
Locations
| Location | Patents | Span |
|---|---|---|
| Essex, VT, US | 6 | 2002–2013 |
| Essex Junction, VT, US | 4 | 2002–2007 |
| Milton, VT, US | 3 | 1992–1994 |
| Ince, GB | 1 | 1989 |