Inventor

David A. Lee

Inventor
Beaverton, OR, US

Overview

34→
Patents
1986–2015
Patent span
Electricity
Primary field (CPC H)

Patents· 34 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

G06Fprimary
G06FElectric digital data processing14%
H04NPictorial communication, e.g. television14%
F16FSprings13%
H04LTransmission of digital information, e.g. telegraphic communication11%
E04HBuildings or like structures for particular purposes6%
A61BDiagnosis3%
A61FFilters implantable into blood vessels3%
D02GCrimping or curling fibres, filaments, threads, or yarns3%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution3%
A61MDevices for introducing media into, or onto, the body2%
PatentTitleYear
9,206,616'Negative stiffness device and method'20158,857,110'Negative stiffness device and method'20148,856,515'Implementation of robust and secure content protection in a system-on-a-chip apparatus'20148,429,889'Apparatus and method for producing a yarn'20138,237,014'Energy crops for improved biofuel feedstocks'20127,752,832'Apparatus for producing a yarn'20107,600,118'Method and apparatus for augmenting authentication in a cryptographic system'20097,426,274'Method and apparatus for generating pseudo random numbers in a video device having an embedded cipher unit'20087,415,110'Method and apparatus for the generation of cryptographic keys'20087,233,666'Method and apparatus for increasing the entropy of a pseudorandom number'20077,114,168'Method and apparatus for determining scope of content domain'20067,068,786'Dual use block/stream cipher'20067,043,021'Digital video content transmission ciphering and deciphering method and apparatus'20066,956,949'Method and apparatus for authenticating an hierarchy of video receiving devices'20056,947,558'Stream cipher having a shuffle network combiner function'20056,931,129'Method and apparatus for generating pseudo random numbers in a video device having an embedded cipher unit'20056,920,221'Method and apparatus for protected exchange of status and secret values between a video source application and a video hardware interface'20056,731,758'Digital video content transmission ciphering and deciphering method and apparatus'20046,477,252'Digital video content transmission ciphering and deciphering method and apparatus'20026,438,221'Electronote wall mounted messaging device'20026,065,100'Caching apparatus and method for enhancing retrieval of data from an optical storage device'20006,064,922'Untethered avionics kneeboard interface device'20006,042,094'Self-centering column assembly employing liquid spring and structures containing such columns'20005,890,705'Self-centering liquid spring assembly and constructions thereof'19995,559,671'BI-directional shock isolation mounting system and method'19965,163,251'Hand-held knife sharpener'19924,900,300'Surgical instrument'19904,892,051'Shock isolation method and apparatus for ship-mounted device'19904,863,457'Drug delivery device'19894,815,574'Frictionless damper'19894,773,164'Self-aligning caliber bar'19884,730,706'Snubber with integral test structure'19884,638,895'Frictionless hydraulic damper and damper-snubber'19874,628,938'Continuous applanation tonometer'1986

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1986–2014Patents assigned to LEE DAVID A (5)· patent assignee history
1987–2000Patents assigned to TAYCO DEV (7)· patent assignee history
1987–2015Based in Santa Monica, CA, US· patent location history
1989–1990Based in Los Angeles, CA, US· patent location history
2002–2014Patents assigned to INTEL CORP (14)· patent assignee history
2002–2008Based in Beaverton, OR, US· patent location history
2007–2014Based in Portland, OR, US· patent location history
2010–2013Based in Christchurch, NZ· patent location history
2014–2015Patents assigned to TAYLOR DEVICES INC (2)· patent assignee history
2014–2015Patents assigned to UNIV NEW YORK STATE RES FOUND (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
INTEL CORP142002–2014
TAYCO DEV71987–2000
LEE DAVID Aself51986–2014
TAYLOR DEVICES INC22014–2015
UNIV NEW YORK STATE RES FOUND22014–2015
Locations
LocationPatentsSpan
Beaverton, OR, US112002–2008
Santa Monica, California, US101987–2015
Portland, OR, US32007–2014
Christchurch, NZ22010–2013
Los Angeles, California, US21989–1990