Inventor
John William Bowron
Inventor
Penetanguishene, CA
Overview
Patents· 14 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G02Bprimary
G02BOptical elements, systems or apparatus41%
G03BApparatus or arrangements for taking photographs or for projecting or viewing them28%
H04NPictorial communication, e.g. television24%
G01JMeasurement of intensity, velocity, spectral content, polarisation, phase or pulse characteristics of infrared, visible or ultraviolet light3%
G01NInvestigating or analysing materials by determining their chemical or physical properties3%
PatentTitleYear
10,073,328Reducing angular spread in digital image projection20189,720,314'Dual projection in short screen distance'20179,503,711'Reducing angular spread in digital image projection'20169,405,180'Color dependent aperture stop'20169,091,860'Spatially modifying polarization state of light'20157,289,272'Optical system including an anamorphic lens'20077,077,528'Digital projection display system with external light source'20066,997,564'Digital projection display'20066,992,830'Projection display having an angle-selective coating for enhanced image contrast, and method for enhancing image contrast'20066,704,145'Air-gap optical structure having the air gap defined by a layered spacer structure'20046,644,813'Four prism color management system for projection systems'20036,205,271'Optical integrator rod'20015,860,721'Optical resizing apparatus'19995,192,980'Apparatus and method for method for spatially- and spectrally-resolved measurements'1993Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1993Patents assigned to DIXON A E (1)· patent assignee history
1993–2001Based in Waterloo, CA· patent location history
2001Patents assigned to CHRISTIE DIGITAL SYS INC (1)· patent assignee history
2003–2007Patents assigned to RAYTHEON CO (6)· patent assignee history
2003–2007Based in Penetanguishene, CA· patent location history
2004Based in Pentanguishene, CA· patent location history
2015–2018Patents assigned to IMAX CORP (5)· patent assignee history
2015Patents assigned to BOWRON JOHN WILLIAM (1)· patent assignee history
2015–2018Based in Oakville, CA· patent location history
2017Based in Burlington, CA· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| RAYTHEON CO | 6 | 2003–2007 |
| IMAX CORP | 5 | 2015–2018 |
| BOWRON JOHN WILLIAMself | 1 | 2015 |
| CHRISTIE DIGITAL SYS INC | 1 | 2001 |
| DIXON A E | 1 | 1993 |
Locations
| Location | Patents | Span |
|---|---|---|
| Penetanguishene, CA | 5 | 2003–2007 |
| Oakville, CA | 4 | 2015–2018 |
| Waterloo, CA | 2 | 1993–2001 |
| Burlington, CA | 1 | 2017 |
| Pentanguishene, CA | 1 | 2004 |