Inventor

Peter J. Johnston

Inventor
San Francisco, CA, US

Overview

4→
Patents
1978–2019
Patent span
Electricity
Primary field (CPC H)

Patents· 4 as inventor

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

H05Kprimary
H05KPrinted circuits22%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h1022%
Y02PClimate change mitigation technologies in the production or processing of goods22%
A47CChairs11%
H01LSemiconductor devices11%
H02JElectric power networks11%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1978Patents assigned to SPILLER SPRING CO (1)· patent assignee history
1978Based in Conyngham, PA, US· patent location history
2017–2019Patents assigned to APPLE INC (3)· patent assignee history
2017–2019Based in San Francisco, CA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
APPLE INC32017–2019
SPILLER SPRING CO11978
Locations
LocationPatentsSpan
San Francisco, California, US32017–2019
Conyngham, Pennsylvania, US11978