Inventor

Norman P. Perkins, Jr.

Inventor
Westminster, MD, US

Overview

8→
Patents
1979–2021
Patent span
Electricity
Primary field (CPC H)

Patents· 8 as inventor

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

H01Hprimary
H01HElectric switches36%
F16BDevices for fastening or securing constructional elements or machine parts together, e.g. nails, bolts, circlips, clamps, clips or wedges7%
G05BControl or regulating systems in general7%
G06FElectric digital data processing7%
H01FMagnets7%
H01RElectrically-conductive connections7%
H02JElectric power networks7%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution7%
Y02PClimate change mitigation technologies in the production or processing of goods7%
Y10TTechnical subjects covered by former us classification7%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1979–1981Patents assigned to GOULD INC (6)· patent assignee history
1979–1981Based in Westminster, MD, US· patent location history
1987Patents assigned to SIEMENS ENERGY & AUTOMAT (1)· patent assignee history
1987Based in Duluth, GA, US· patent location history
2021Patents assigned to UNIV LELAND STANFORD JUNIOR (1)· patent assignee history
2021Based in San Francisco, CA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
GOULD INC61979–1981
SIEMENS ENERGY & AUTOMAT11987
UNIV LELAND STANFORD JUNIOR12021
Locations
LocationPatentsSpan
Westminster, Maryland, US61979–1981
San Francisco, California, US12021
Duluth, Georgia, US11987