Inventor
David E. Slobodin
Inventor
Lake Oswego, OR, US
Overview
Patents· 23 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H04Nprimary
H04NPictorial communication, e.g. television24%
G03BApparatus or arrangements for taking photographs or for projecting or viewing them20%
G02BOptical elements, systems or apparatus15%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein9%
F21VFunctional features or details of lighting devices or systems thereof4%
F21YIndexing scheme associated with subclasses f21k, f21l, f21s and f21v, relating to the form or the kind of the light sources or of the colour of the light emitted4%
F28DHeat-exchange apparatus, not provided for in another subclass, in which the heat-exchange media do not come into direct contact4%
H04LTransmission of digital information, e.g. telegraphic communication4%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests4%
Y10TTechnical subjects covered by former us classification4%
PatentTitleYear
7,970,833'Image capture method, system and apparatus'20117,847,868'Subpixels of a light valve pixel having characteristics adapted to complement light within a range of wavelengths'2010RE041768'System and method employing reflective imaging devices for a projection display'20107,667,893'Microlens front projection screen'20107,553,028'Projection LED cooling'20097,554,623'Optical assembly to provide complementary illumination of subpixels of a light valve pixel'20097,447,608'Method and apparatus for a collaborative meeting room system'20087,408,527'Light emitting device driving method and projection apparatus so equipped'20087,375,867'Transmissive electromechanical light valve and system'20087,259,912'Fresnel lens having reduced distortions'20077,252,385'Projection LED cooling'20077,237,004'Dataconferencing appliance and system'20077,172,289'Projection apparatus with colored light path combination through a transparent optical element'20077,128,421'Thermal management of projection apparatus'20066,988,806'Instant-on projector'20066,962,426'Recirculation of reflected source light in an image projection system'20056,899,436'Projection apparatus with axis parallel micro mirrors and light sources'20056,767,100'System and method employing reflective imaging devices for a projection display'20046,685,792'Method of making a small inlet optical panel'20046,334,685'Segmented light pipe apparatus and method for increasing luminous efficiency of single light-valve, color video projection displays'20026,222,971'Small inlet optical panel and a method of making a small inlet optical panel'20015,140,448'Apparatus for and method of operation of smectic liquid crystal light valve having scattering centers'19925,084,777'Light addressed liquid crystal light valve incorporating electrically insulating light blocking material of a-SiGe:H'1992Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1992Patents assigned to GREYHAWK SYSTEMS INC (2)· patent assignee history
1992Based in Saratoga, CA, US· patent location history
1992Based in Los Altos, CA, US· patent location history
2001–2004Patents assigned to BROOKHAVEN SCIENCE ASS LLC (2)· patent assignee history
2001Patents assigned to SLOBODIN DAVID (1)· patent assignee history
2001–2011Based in Lake Oswego, OR, US· patent location history
2002–2009Patents assigned to INFOCUS CORP (15)· patent assignee history
2010–2011Patents assigned to SEIKO EPSON CORP (4)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| INFOCUS CORP | 15 | 2002–2009 |
| SEIKO EPSON CORP | 4 | 2010–2011 |
| BROOKHAVEN SCIENCE ASS LLC | 2 | 2001–2004 |
| GREYHAWK SYSTEMS INC | 2 | 1992 |
| SLOBODIN DAVIDself | 1 | 2001 |
Locations
| Location | Patents | Span |
|---|---|---|
| Lake Oswego, OR, US | 21 | 2001–2011 |
| Saratoga, California, US | 1 | 1992 |
| Los Altos, California, US | 1 | 1992 |