Inventor
Stephen Walker
Inventor
London, GB
Overview
Patents· 5 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G06Fprimary
G06FElectric digital data processing25%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests25%
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds13%
C09DCoating compositions, e.g. paints, varnishes or lacquers13%
G03GElectrography13%
Y10TTechnical subjects covered by former us classification13%
PatentTitleYear
8,095,559'Fast adaptive document filtering'20127,516,146'Fast adaptive document filtering'20096,677,398'Aqueous ink binder composition'20045,830,957'Resins formed from alpha-beta-unsaturated monomers and unsaturated fatty acids'19984,526,847'Image receiving transparency and method of making'1985Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1985Based in Hoffman Estates, IL, US· patent location history
1998Patents assigned to MORTON INT INC (1)· patent assignee history
1998–2004Based in Marengo, IL, US· patent location history
2004Patents assigned to ROHM & HAAS (1)· patent assignee history
2009–2012Patents assigned to MICROSOFT CORP (2)· patent assignee history
2009–2012Based in London, GB· patent location history
2012Patents assigned to ROBERTSON STEPHEN (1)· patent assignee history
2012Patents assigned to WALKER STEPHEN (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| MICROSOFT CORP | 2 | 2009–2012 |
| MORTON INT INC | 1 | 1998 |
| ROBERTSON STEPHEN | 1 | 2012 |
| ROHM & HAAS | 1 | 2004 |
| WALKER STEPHENself | 1 | 2012 |
Locations
| Location | Patents | Span |
|---|---|---|
| London, GB | 2 | 2009–2012 |
| Marengo, Illinois, US | 2 | 1998–2004 |
| Hoffman Estates, Illinois, US | 1 | 1985 |