Inventor
David K. Biegelsen
Inventor
Portola Valley, CA, US
Overview
Patents· 189 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G03Gprimary
G03GElectrography7%
B65HHandling thin or filamentary material, e.g. sheets, webs, cables6%
G02BOptical elements, systems or apparatus5%
Y10TTechnical subjects covered by former us classification5%
B41JTypewriters5%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h104%
B33YAdditive manufacturing, i.e. manufacturing of three-dimensional [3d] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3d printing, stereolithography or selective laser sintering4%
H01LSemiconductor devices4%
B41MPrinting, duplicating, marking, or copying processes3%
H04NPictorial communication, e.g. television3%
PatentTitleYear
11,098,449Pre-drier apparatus and method202111,077,251Alignment of elongated particles in a particle delivery device202111,020,956Fog development for digital offset printing applications202110,987,628Water control in dielectric fluid layers202110,981,374Ejector device202110,919,215Electrostatic polymer aerosol deposition and fusing of solid particles for three-dimensional printing202110,795,169Laser homogenizing and beam shaping illumination optical system and method202010,744,754Fog development for digital offset printing applications202010,604,843High registration particles-transferring system202010,551,625Laser homogenizing and beam shaping illumination optical system and method202010,527,964Electrographic printing using encapsulated ink droplets202010,519,037Multipass transfer surface for dynamic assembly201910,500,784Additive deposition system and method201910,481,404Rectangular cavity optical beam shaper and method of manufacturing the same201910,449,497Methods of making graphene oxide nanofilters201910,449,297Alignment of elongated particles in a particle delivery device201910,434,703Additive deposition system and method201910,397,529Transparent optical coupler active matrix array201910,388,730Plurality of electrodes on a substrate having different range of spacing201910,363,731Ejector device201910,328,688Tunable surfactants in dampening fluids for digital offset ink printing applications201910,308,504Hierarchical micro assembler system201910,302,494Obtaining spectral information from a moving object201910,192,892Active matrix backplane formed using thin film optocouplers201910,186,776Rectifying devices and fabrication methods201910,141,285Externally induced charge patterning using rectifying devices201810,115,654Buried thermally conductive layers for heat extraction and shielding201810,039,885System and method for enhancing particle delivery to biological tissue201810,043,687Bumped electrode arrays for microassemblers20189,997,837Rectifying devices and fabrication methods20189,952,122Polysensing bioelectronic test plate20189,946,135High voltage thin film optical switch20189,947,611Through hole arrays for flexible layer interconnects20189,713,828'Tunable surfactants in dampening fluids for digital offset ink printing applications'20179,675,296'Pulsatile venous blood stoppage for analyte detection'20179,639,050'Electrophotographic patterning of an image definition material'20179,630,424'VCSEL-based variable image optical line generator'20179,551,934'Imaging system with electrophotographic patterning of an image definition material and methods therefor'20179,529,307'Imaging system for patterning of an image definition material by electro-wetting and methods therefor'20169,519,135'Aperture for illuminating micromirror arrays having mirror tilt axis not parallel with an array axis'20169,477,161'Method and system to operate arrays of reflective elements for extended lifetime operation in use with high intensity power light sources'20169,473,047'Method for reduction of stiction while manipulating micro objects on a surface'20169,431,283'Direct electrostatic assembly with capacitively coupled electrodes'20169,358,809'Microwave drying of ink for an ink jet printer'20169,316,993'Electrophotographic patterning of an image definition material'20169,316,994'Imaging system with electrophotographic patterning of an image definition material and methods therefor'20169,272,532'Molded textured imaging blanket surface'20169,272,506'Systems and methods for implementing an advanced inker unit surface conditioning system in a variable data digital lithographic printing device'20169,250,516'Method of making a molded textured imaging blanket surface'20169,021,948'Environmental control subsystem for a variable data lithographic apparatus'20159,021,949'Dampening fluid recovery in a variable data lithography system'20159,004,669'Methods of leveling ink on substrates and apparatuses useful in printing'20158,991,310'System for direct application of dampening fluid for a variable data lithographic apparatus'20158,991,997'Device for leveling ink under a thermal gradient'20158,850,694'Systems and methods for forming micro-object assemblies'20148,833,254'Imaging system with electrophotographic patterning of an image definition material and methods therefor'20148,829,413'Switchable reflective layer for windows and other optical elements'20148,705,163'Switchable reflective layer for windows and other optical elements'20148,672,460'Systems and methods for transporting particles'20148,617,667'Methods of leveling ink on substrates and apparatuses useful in printing'20138,606,165'Extended zone low temperature non-contact heating for distortion free fusing of images on non-porous material'20138,586,277'Patterning of an image definition material by electro-wetting'20138,581,167'Optically patterned virtual electrodes and interconnects on polymer and semiconductive substrates'20138,579,414'Self-assembling structures for electrostatic extraction of pigments from liquid inks for marking'20138,550,604'Systems and methods for transporting particles'20138,550,603'Systems and methods for transporting particles'20138,545,004'Contactless ink leveling method and appartus'20138,545,005'Contactless ink leveling method and appartus'20138,378,263'Hybrid multi-zone fusing'20138,360,423'Transport for printing systems'20138,312,619'Micro-assembler'20128,282,097'Transport for printing systems'20128,181,336'Micro-assembler'20128,135,325'Image-drivable flash lamp'20128,123,345'System and method for leveling applied ink in a printer'20128,118,420'Contactless ink leveling method and apparatus'20128,042,807'Transport for printing systems'20117,969,472'Automatic camera steering control and video conferencing'20117,945,346'Module identification method and system for path connectivity in modular systems'20117,931,269'Rotational jam clearance apparatus'20117,918,453'Rotational jam clearance apparatus'20117,890,043'Pressure-controlled steam oven for asymptotic temperature control of continuous feed media'20117,861,405'System for forming a micro-assembler'20117,801,475'Ultra-heated/slightly heated steam zones for optimal control of water content in steam fuser'20107,760,891'Focused hypersonic communication'20107,751,667'Microfabricated light collimating screen'20107,738,805'Xerography methods and systems employing addressable fusing of unfused toner image'20107,695,602'Systems and methods for transporting particles'20107,624,981'Universal variable pitch interface interconnecting fixed pitch sheet processing machines'20097,517,424'Elastic microchannel collimating arrays and method of fabrication'20097,482,729'Hypersonic transducer'20097,440,722'Xerography methods and systems employing addressable fusing of unfused toner image'2008RE040338'Two dimensional object position sensor'20087,374,603'Particle transport and near field analytical detection'20087,347,533'Low cost piezo printhead based on microfluidics in printed circuit board and screen-printed piezoelectrics'20087,320,461'Multifunction flexible media interface system'20087,313,242'Hypersonic transducer'20077,310,358'Semiconductor lasers'20077,250,954'Three-dimensional image rendering devices and methods'20077,242,705'Grating-outcoupled cavity resonator having uni-directional emission'20077,235,123'Particle transport and near field analytical detection'20077,233,263'Analog actuation allocation structure with many actuators'20077,226,049'Universal flexible plural printer to plural finisher sheet integration system'20077,194,170'Elastic microchannel collimating arrays and method of fabrication'20077,185,888'Rotational jam clearance apparatus'20077,147,763'Apparatus and method for using electrostatic force to cause fluid movement'20067,148,605'Biaxial piezoelectric motor'20067,108,260'Flexible director paper path module'20067,093,831'Media path modules'20067,058,343'Systems and methods for in-situ replenishment of consumable items'20067,031,365'Locally-outcoupled cavity resonator having unidirectional emission'20066,915,267'Distributed control of non-linear coupled systems with a single output'20056,846,377'System and method for rotatable element assembly and laminate substrate assembly'20056,807,892'Pneumatic actuator with elastomeric membrane and low-power electrostatic flap valve arrangement'20046,802,927'Method for cutting a member to form a desired structure'20046,781,159'Field emission display device'20046,743,982'Stretchable interconnects using stress gradient films'20046,700,556'Display sheet with stacked electrode structure'20046,676,106'Flap structure for electrostatic or magnetic applications and method for making same'20046,677,926'Electrophoretic display device'20046,655,964'Low cost integrated out-of-plane micro-device structures and method of making'20036,617,261'Structure and method for fabricating GaN substrates from trench patterned GaN layers on sapphire substrates'20036,607,320'Mobius combination of reversion and return path in a paper transport system'20036,582,989'Photolithographically-patterned out-of-plane coil structures and method of making'20036,579,735'Method for fabricating GaN field emitter arrays'20036,568,592'Distribution of partitionable physical properties for market based control of actuators and sensors'20036,554,276'Flexible sheet reversion using an omni-directional transport system'20036,536,889'Systems and methods for ejecting or depositing substances containing multiple photointiators'20036,487,002'Large area micro-structure template for creation of closely packed arrays'20026,476,376'Two dimensional object position sensor'20026,454,260'Air jet board device'20026,440,252'Method for rotatable element assembly'20026,442,369'Air bearing mechanism for flattening paper in a printing machine'20026,406,747'Methods of encapsulating cores using ink jets or fogs'20026,392,524'Photolithographically-patterned out-of-plane coil structures and method of making'20026,385,430'Overlapping position sensors for object position tracking'20026,340,965'Modifiable display having fixed image patterns'20026,340,149'Tethered fluid valve apparatus'20026,335,084'Encoded sheet material and sheet processing apparatus using encoded sheet material'20026,328,436'Electro-static particulate source, circulation, and valving system for ballistic aerosol marking'20016,299,462'Self positioning, passive MEMS mirror structures'20016,293,659'Particulate source, circulation, and valving system for ballistic aerosol marking'20016,284,352'Ferrofluidic electric paper'20016,267,605'Self positioning, passive MEMS mirror structures'20016,210,514'Thin film structure machining and attachment'20016,146,798'Printing plate with reversible charge-controlled wetting'20006,136,210'Photoetching of acoustic lenses for acoustic ink printing'20006,123,316'Conduit system for a valve array'20006,120,002'Fluid valves having cantilevered blocking films'20006,098,661'Unstable flap valve for fluid flow control'20006,089,534'Fast variable flow microelectromechanical valves'20006,086,064'Object position/presence sensor and method for detecting object position or presence'20006,044,717'Pressure and force profile sensor and method for detecting pressure'20006,032,923'Fluid valves having cantilevered blocking films'20006,032,536'Pressure sensor and method for detecting pressure'20006,004,395'Paper handling flap valve array system'19995,999,758'Hybrid hierarchical control architecture for media handling'19995,971,355'Microdevice valve structures to fluid control'19995,951,006'Modular air jet array with coanda exhausting for module decoupling'19995,953,061'Pixel cells having integrated analog memories and arrays thereof'19995,941,501'Passively addressable cantilever valves'19995,934,140'Paper property sensing system'19995,913,268'Pneumatic rollers and paper handling arrangements'19995,897,097'Passively addressable fluid valves having S-shaped blocking films'19995,864,127'Analog glyph detector and detector arrays'19995,839,722'Paper handling system having embedded control structures'19985,808,676'Pixel cells having integrated analog memories and arrays thereof'19985,790,699'Macrodetector based image conversion system'19985,767,877'Toner jet printer'19985,754,690'Position sensitive detector based image conversion system capable of preserving subpixel information'19985,744,732'Sheet materials transport system'19985,717,283'Display sheet with a plurality of hourglass shaped capsules containing marking means responsive to external fields'19985,714,697'Sheet materials mass measuring system'19985,634,636'Flexible object handling system using feedback controlled air jets'19975,629,517'Sensor element array having overlapping detection zones'19975,607,876'Fabrication of quantum confinement semiconductor light-emitting devices'19975,578,837'Integrating hyperacuity sensors and arrays thereof'19965,572,344'Pixel elements having resistive divider elements'19965,567,957'Segmented resistance layers with storage nodes'19965,567,971'Variable size light sensor element'19965,541,652'Hyperacuity sensing'19965,521,931'Nonmonolithic arrays of accurately positioned diode lasers'19964,994,867'Intermediate buffer films with low plastic deformation threshold for lattice mismatched heteroepitaxy'19914,935,385'Method of forming intermediate buffer films with low plastic deformation threshold using lattice mismatched heteroepitaxy'19904,542,397'Self aligning small scale integrated circuit semiconductor chips to form large area arrays'19854,496,608'P-Glass reflow technique'19854,419,680'Electrographic printing system'19833,990,072'Acoustic residue algebra decoder'19763,938,881'Acousto-optic modulation device'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976–2021Patents assigned to XEROX CORP (106)· patent assignee history
1976–1983Based in Woodside, CA, US· patent location history
1985–2021Based in Portola Valley, CA, US· patent location history
2006–2021Patents assigned to PALO ALTO RES CT INC (95)· patent assignee history
2011Based in Palo Alto, CA, US· patent location history
2012–2018Patents assigned to BIEGELSEN DAVID K (24)· patent assignee history
2012–2014Patents assigned to VOLKEL ARMIN R (7)· patent assignee history
2013–2015Patents assigned to BIEGELSEN DAVID (6)· patent assignee history
2013Based in Santa Clara, CA, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| XEROX CORP | 106 | 1976–2021 |
| PALO ALTO RES CT INC | 95 | 2006–2021 |
| BIEGELSEN DAVID Kself | 24 | 2012–2018 |
| VOLKEL ARMIN R | 7 | 2012–2014 |
| BIEGELSEN DAVIDself | 6 | 2013–2015 |
Locations
| Location | Patents | Span |
|---|---|---|
| Portola Valley, California, US | 184 | 1985–2021 |
| Woodside, California, US | 3 | 1976–1983 |
| Santa Clara, California, US | 1 | 2013 |
| Palo Alto, California, US | 1 | 2011 |