Inventor

David J. Tilles

Inventor
Woodstock, MD, US

Overview

18→
Patents
1987–2008
Patent span
Performing operations
Primary field (CPC B)

Patents· 18 as inventor

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

B07Cprimary
B07CPostal sorting30%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests27%
B65HHandling thin or filamentary material, e.g. sheets, webs, cables23%
G07FCoin-freed or like apparatus5%
B01LChemical or physical laboratory apparatus for general use2%
B65GTransport or storage devices, e.g. conveyors for loading or tipping, shop conveyor systems or pneumatic tube conveyors2%
C12MApparatus for enzymology or microbiology2%
C12QMeasuring or testing processes involving enzymes, nucleic acids or microorganisms2%
G01NInvestigating or analysing materials by determining their chemical or physical properties2%
H05KPrinted circuits2%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1987Patents assigned to US AIR FORCE (1)· patent assignee history
1987–1995Based in Baltimore, MD, US· patent location history
1992–1996Patents assigned to WESTINGHOUSE ELECTRIC CORP (7)· patent assignee history
1996–2008Based in Woodstock, MD, US· patent location history
2001–2008Patents assigned to NORTHROP GRUMMAN CORP (10)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
NORTHROP GRUMMAN CORP102001–2008
WESTINGHOUSE ELECTRIC CORP71992–1996
US AIR FORCE11987
Locations
LocationPatentsSpan
Woodstock, Maryland, US111996–2008
Baltimore, Maryland, US71987–1995