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Inventor

Robert A. Penty

Inventor
Cape Elizabeth, ME, US

Overview

5→
Patents
1982–2021
Patent span
General tagging of new technological developments
Primary field (CPC Y)

Patents· 5 as inventor

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

C04Bprimary
C04BLime, magnesia20%
F28FDetails of heat-exchange and heat-transfer apparatus, of general application20%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests20%
Y10TTechnical subjects covered by former us classification20%
G06KGraphical data reading10%
H04BTransmission10%
PatentTitleYear
10,917,134RFID systems20214,497,228'Method of machining cast iron'19854,437,217'Composite ceramic heat exchange tube'19844,433,979'Abrasion resistant silicon nitride based articles'19844,332,295'Composite ceramic heat exchange tube'1982

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1982–1984Patents assigned to HAGUE INT (2)· patent assignee history
1982–1985Based in Cape Elizabeth, ME, US· patent location history
1984–1985Patents assigned to GTE LABORATORIES INC (2)· patent assignee history
2021Patents assigned to CAMBRIDGE ENTPR LTD (1)· patent assignee history
2021Based in Cambridgeshire, GB· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
GTE LABORATORIES INC21984–1985
HAGUE INT21982–1984
CAMBRIDGE ENTPR LTD12021
Locations
LocationPatentsSpan
Cape Elizabeth, ME, US41982–1985
Cambridgeshire, GB12021