Inventor

Mark A. Handschy

Inventor

Boulder, CO, US

Overview

1989–2013

Patent span

Physics

Primary field (CPC G)

Patents· 36 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 therein34%

G09GArrangements or circuits for control of indicating devices using static means to present variable information17%

G02BOptical elements, systems or apparatus13%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests9%

G03HHolographic processes or apparatus5%

G11BInformation storage based on relative movement between record carrier and transducer5%

G11CStatic stores5%

H04NPictorial communication, e.g. television4%

G03BApparatus or arrangements for taking photographs or for projecting or viewing them3%

C07CAcyclic or carbocyclic compounds1%

PatentTitleYear

8,477,083'Gamma variation using illumination intensity'2013 8,337,020'Polarization conversion and color-combination techniques for pico projector illuminators'2012 8,144,269'Reflective LCOS displays utilizing novel polarizing beam splitters'2012 8,134,771'Spatial light modulators with changeable phase masks for use in holographic data storage'2012 8,130,439'Optics arrangements including light source arrangements for an active matrix liquid crystal generator'2012 8,130,185'Active matrix liquid crystal image generator'2012 8,107,344'Phase masks for use in holographic data storage'2012 8,059,142'Digital display'2011 7,733,557'Spatial light modulators with changeable phase masks for use in holographic data storage'2010 7,656,768'Phase masks for use in holographic data storage'2010 7,206,134'Compact electronic viewfinder'2007 7,170,483'Active matrix liquid crystal image generator'2007 7,012,730'Optics arrangements including light source arrangements for an active matrix liquid crystal image generator'2006 6,633,301'RGB illuminator with calibration via single detector servo'2003 6,570,550'Active matrix liquid crystal image generator'2003 6,507,330'DC-balanced and non-DC-balanced drive schemes for liquid crystal devices'2003 6,359,723'Optics arrangements including light source arrangements for an active matrix liquid crystal image generator'2002 6,317,112'Active matrix liquid crystal image generator with hybrid writing scheme'2001 6,195,136'Optics arrangement including light source arrangement for an active matrix liquid crystal image generator'2001 6,100,945'Compensator arrangements for a continuously viewable, DC field-balanced, reflective, ferroelectric liquid crystal display system'2000 6,038,005'Optics arrangements including light source arrangements for an active matrix liquid crystal image generator'2000 5,900,976'Display system including a polarizing beam splitter'1999 5,808,800'Optics arrangements including light source arrangements for an active matrix liquid crystal image generator'1998 5,757,348'Active matrix liquid crystal image generator with hybrid writing scheme'1998 5,748,164'Active matrix liquid crystal image generator'1998 5,694,147'Liquid crystal integrated circuit display including as arrangement for maintaining the liquid crystal at a controlled temperature'1997 5,596,451'Miniature image generator including optics arrangement'1997 5,552,916'Diffractive light modulator'1996 5,539,555'High contrast distorted helex effect electro-optic devices and tight ferroelectric pitch ferroelectric liquid crystal compositions useful therein'1996 5,523,864'Analog liquid crystal spatial light modulator including an internal voltage booster'1996 5,500,748'Liquid crystal spatial light modulator including an internal voltage booster'1996 5,347,378'Fast switching color filters for frame-sequential video using ferroelectric liquid crystal color-selective filters'1994 5,182,665'Diffractive light modulator'1993 5,178,445'Optically addressed spatial light modulator'1993 5,103,329'Surface stabilized ferroelectric liquid crystal switching using proximity effects'1992 4,813,771'Electro-optic switching devices using ferroelectric liquid crystals'1989

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1989–2007Patents assigned to DISPLAYTECH INC (24)· patent assignee history

1989–2013Based in Boulder, CO, US· patent location history

1993–2013Patents assigned to HANDSCHY MARK A (9)· patent assignee history

2010–2012Patents assigned to MICRON TECHNOLOGY INC (8)· patent assignee history

2011–2013Patents assigned to DALLAS JAMES M (2)· patent assignee history

2012–2013Patents assigned to CITIZEN FINETECH MIYOTA CO LTD (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
DISPLAYTECH INC	24	1989–2007
HANDSCHY MARK Aself	9	1993–2013
MICRON TECHNOLOGY INC	8	2010–2012
CITIZEN FINETECH MIYOTA CO LTD	2	2012–2013
DALLAS JAMES M	2	2011–2013

Locations

Location	Patents	Span
Boulder, CO, US	36	1989–2013