Inventor
Douglas B. Hill
Inventor
Calgary, CA
Overview
Patents· 17 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G06Fprimary
G06FElectric digital data processing65%
H01HElectric switches10%
B24BMachines, devices, or processes for grinding or polishing5%
B24DTools for grinding, buffing or sharpening5%
G03BApparatus or arrangements for taking photographs or for projecting or viewing them5%
G09GArrangements or circuits for control of indicating devices using static means to present variable information5%
LOC135%
PatentTitleYear
9,588,951'Annotation method and system for conferencing'20179,588,673'Method for manipulating a graphical object and an interactive input system employing the same'20179,052,745'Method of displaying applications in a multi-monitor computer system and multi-monitor computer system employing the method'20158,740,395'Projection unit and method of controlling a first light source and a second light source'20148,576,172'Pointer tracking across multiple overlapping coordinate input sub-regions defining a generally contiguous input region'20138,487,910'Large scale touch system and methods for interacting with same'20138,325,134'Gesture recognition method and touch system incorporating the same'20128,120,596'Tiled touch system'20128,089,462'Pointer tracking across multiple overlapping coordinate input sub-regions defining a generally contiguous input region'20127,880,720'Gesture recognition method and touch system incorporating the same'20117,643,006'Gesture recognition method and touch system incorporating the same'20107,411,575'Gesture recognition method and touch system incorporating the same'20087,355,593'Pointer tracking across multiple overlapping coordinate input sub-regions defining a generally contiguous input region'20086,025,657'Power operator for switchgear with manual features'20005,895,987'Power operator for switchgear with manual features'1999D0407694'Electrical power operator for switchgear'19994,930,267'Sanding rasp'1990Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1990Based in Marietta, GA, US· patent location history
1999–2000Patents assigned to S & C ELECTRIC CO (3)· patent assignee history
1999–2000Based in Mississauga, CA· patent location history
2008–2017Patents assigned to SMART TECHNOLOGIES ULC (12)· patent assignee history
2008–2017Based in Calgary, CA· patent location history
2012–2015Patents assigned to HILL DOUGLAS B (4)· patent assignee history
2012–2017Patents assigned to HILL DOUGLAS BLAIR (4)· patent assignee history
2012–2013Patents assigned to HOLMGREN DAVID E (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SMART TECHNOLOGIES ULC | 12 | 2008–2017 |
| HILL DOUGLAS Bself | 4 | 2012–2015 |
| HILL DOUGLAS BLAIRself | 4 | 2012–2017 |
| S & C ELECTRIC CO | 3 | 1999–2000 |
| HOLMGREN DAVID E | 2 | 2012–2013 |
Locations
| Location | Patents | Span |
|---|---|---|
| Calgary, CA | 13 | 2008–2017 |
| Mississauga, CA | 3 | 1999–2000 |
| Marietta, Georgia, US | 1 | 1990 |