LexDanaLexDanabeta
Inventor

David R. Woodward

Inventor
Morgantown, WV, US

Overview

7→
Patents
1983–1999
Patent span
Electricity
Primary field (CPC H)

Patents· 7 as inventor

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

H01Jprimary
H01JElectric discharge tubes or discharge lamps55%
H01KElectric incandescent lamps27%
A01NPreservation of bodies of humans or animals or plants or parts thereof9%
C07DHeterocyclic compounds9%
PatentTitleYear
5,898,265'TCLP compliant fluorescent lamp'19995,789,847'High efficiency sealed beam reflector lamp with reflective surface of heat treated silver'19985,747,919'Electric lamp having a hybrid skirted lamp base'19985,744,905'Emission materials for discharge lamps and method for manufacturing electrode structures with such materials'19985,585,694'Low pressure discharge lamp having sintered \"cold cathode\" discharge electrodes'19965,493,170'High efficiency sealed beam reflector lamp'19964,372,970'Benzofuran acetic acid esters and their arthropocidal compositions'1983

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1983Patents assigned to SHELL INT RESEARCH (1)· patent assignee history
1983Based in Runcorn, GB· patent location history
1996–1999Patents assigned to PHILIPS ELECTRONICS NA (5)· patent assignee history
1996Patents assigned to PHILIPS CORP (1)· patent assignee history
1996–1999Based in Morgantown, WV, US· patent location history
1996Based in Norwalk, CT, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
PHILIPS ELECTRONICS NA51996–1999
PHILIPS CORP11996
SHELL INT RESEARCH11983
Locations
LocationPatentsSpan
Morgantown, WV, US51996–1999
Norwalk, CT, US11996
Runcorn, GB11983