Inventor
Christopher Chapman Rich
Inventor
Rancho Palos Verdes, CA, US
Overview
Patents· 20 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G02Bprimary
G02BOptical elements, systems or apparatus22%
B42DBooks10%
B29DProducing particular articles from plastics or from substances in a plastic state8%
G03BApparatus or arrangements for taking photographs or for projecting or viewing them8%
F21VFunctional features or details of lighting devices or systems thereof6%
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 emitted6%
G03HHolographic processes or apparatus6%
Y10TTechnical subjects covered by former us classification6%
B44FSpecial designs or pictures4%
F21SNon-portable lighting devices4%
PatentTitleYear
11,113,919Optical switch devices202110,883,678Linear light emitting diode luminaires202110,859,851Optical products, masters for fabricating optical products, and methods for manufacturing masters and optical products202010,850,550Optical switch devices202010,838,218Optical structures providing dichroic effects202010,795,059Ultra thin Fresnel lenses and other optical elements202010,655,803Linear light emitting diode luminaires202010,252,563Optical products, masters for fabricating optical products, and methods for manufacturing masters and optical products20199,851,070Systems and methods to impart visual quality to illumination systems20179,110,363'Polarization preserving projection screen with engineered pigment and method for making same'20158,488,240'Polarization preserving projection screen with engineered pigment and method for making same'20138,194,315'Polarization preserving projection screen with engineered particle and method for making same'20128,169,699'Polarization preserving projection screen with engineered pigment and method for making same'20127,430,358'Elliptical diffusers used in displays'20087,343,693'Scale assembly for optical encoder having affixed optical reference markers'20087,298,533'Optical films for creating unique optical effects'20075,293,272'High finesse holographic fabry-perot etalon and method of fabricating'19945,276,537'Diamondlike carbon thin film protected hologram and method of making same'19945,083,219'Method and apparatus for recording Lippman holographic mirrors'19925,026,131'High channel density, broad bandwidth wavelength division multiplexer with highly non-uniform Bragg-Littrow holographic grating'1991Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1991–1994Patents assigned to PHYSICAL OPTICS CORP (4)· patent assignee history
1991–1994Based in San Pedro, CA, US· patent location history
2007–2021Based in Rancho Palos Verdes, CA, US· patent location history
2012–2013Patents assigned to LEWANDOWSKI RAYMOND JACOB (3)· patent assignee history
2012–2013Patents assigned to PETERSEN JOEL (3)· patent assignee history
2012–2015Patents assigned to REALD INC (3)· patent assignee history
2017–2021Patents assigned to WAVEFRONT TECH INC (7)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| WAVEFRONT TECH INC | 7 | 2017–2021 |
| PHYSICAL OPTICS CORP | 4 | 1991–1994 |
| LEWANDOWSKI RAYMOND JACOB | 3 | 2012–2013 |
| PETERSEN JOEL | 3 | 2012–2013 |
| REALD INC | 3 | 2012–2015 |
Locations
| Location | Patents | Span |
|---|---|---|
| Rancho Palos Verdes, California, US | 16 | 2007–2021 |
| San Pedro, California, US | 4 | 1991–1994 |