Inventor

John A. Purbrick

Inventor
Arlington, MA, US

Overview

7→
Patents
1984–2009
Patent span
Physics
Primary field (CPC G)

Patents· 7 as inventor

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

B01Lprimary
B01LChemical or physical laboratory apparatus for general use28%
G01NInvestigating or analysing materials by determining their chemical or physical properties28%
Y10TTechnical subjects covered by former us classification28%
G05BControl or regulating systems in general6%
H02PControl or regulation of electric motors, electric generators or dynamo-electric converters6%
H04NPictorial communication, e.g. television6%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1984Patents assigned to MASSACHUSETTS INST TECHNOLOGY (1)· patent assignee history
1984–2009Based in Arlington, MA, US· patent location history
1991Patents assigned to SUB TV LIMITED PARTNERSHIP (1)· patent assignee history
2001–2007Patents assigned to CYTOLOGIX CORP (4)· patent assignee history
2009Patents assigned to DAKO DENMARK AS (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CYTOLOGIX CORP42001–2007
DAKO DENMARK AS12009
MASSACHUSETTS INST TECHNOLOGY11984
SUB TV LIMITED PARTNERSHIP11991
Locations
LocationPatentsSpan
Arlington, Massachusetts, US71984–2009