Inventor
Gregory P. Crawford
Inventor
Providence, RI, US
Overview
Patents· 11 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G02Fprimary
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein35%
G02BOptical elements, systems or apparatus17%
G03FPhotomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devices9%
C07CAcyclic or carbocyclic compounds4%
C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium4%
C09KMaterials for miscellaneous applications, not provided for elsewhere4%
G01BMeasuring length, thickness or similar linear dimensions4%
G01LMeasuring force, stress, torque, work, mechanical power, mechanical efficiency, or fluid pressure4%
G03HHolographic processes or apparatus4%
G06FElectric digital data processing4%
PatentTitleYear
9,264,445'Mobile application security assessment'20167,196,758'Method of alignment of liquid crystals comprising exposing an alignment material to an interference pattern'20077,006,747'Optical devices incorporating photo reactive polymers'20066,778,236'Reflective liquid crystal strain gauge with aspected particles and polarization-sensitive devices'20046,538,775'Holographically-formed polymer dispersed liquid crystals with multiple gratings'20036,294,109'Ferroelectric and electroclinic liquid crystal materials with sub-ambient temperature stability, broad operation range, and fast dynamic response'20015,978,063'Smart spacers for active matrix liquid crystal projection light valves'19995,928,819'Methods to fabricate optical equivalents of fiber optic face plates using reactive liquid crystals and polymers'19995,867,240'Liquid crystal cell constructed to produce a highly anisotropic light distribution possessing extremely high contrast around a narrow meridian'19995,751,390'Enhanced off-axis viewing performance of liquid crystal display employing a fiberoptic faceplate in conjunction with dual negative retarders and a brightness enhancing film on the illumination source'19985,726,730'Optical equivalents of fiber optic face plates using reactive liquid crystals and polymers'1998Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1998–1999Patents assigned to XEROX CORP (5)· patent assignee history
1998–2007Based in Providence, RI, US· patent location history
2001Patents assigned to US NAVY (1)· patent assignee history
2001Based in Palo Alto, CA, US· patent location history
2003–2004Patents assigned to REVEO INC (2)· patent assignee history
2004Patents assigned to UNIV BROWN RES FOUND (1)· patent assignee history
2006–2007Patents assigned to UNIV BROWN (2)· patent assignee history
2016Based in Arlington Heights, IL, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| XEROX CORP | 5 | 1998–1999 |
| REVEO INC | 2 | 2003–2004 |
| UNIV BROWN | 2 | 2006–2007 |
| UNIV BROWN RES FOUND | 1 | 2004 |
| US NAVY | 1 | 2001 |
Locations
| Location | Patents | Span |
|---|---|---|
| Providence, RI, US | 9 | 1998–2007 |
| Arlington Heights, Illinois, US | 1 | 2016 |
| Palo Alto, California, US | 1 | 2001 |