Inventor

Rex T. Ehman

Inventor
San Jose, CA, US

Overview

17→
Patents
2015–2021
Patent span
Electricity
Primary field (CPC H)

Patents· 17 as inventor

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

H01Qprimary
H01QAntennas, i.e. radio aerials18%
H04BTransmission18%
H02JElectric power networks13%
H04RLoudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers11%
H04MTelephonic communication9%
A61BDiagnosis4%
G01LMeasuring force, stress, torque, work, mechanical power, mechanical efficiency, or fluid pressure4%
G06FElectric digital data processing4%
H01FMagnets4%
B29CShaping or joining of plastics2%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2015–2021Patents assigned to APPLE INC (17)· patent assignee history
2015–2019Based in Cupertino, CA, US· patent location history
2018–2021Based in San Jose, CA, US· patent location history
2019Based in Santa Clara, CA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
APPLE INC172015–2021
Locations
LocationPatentsSpan
San Jose, California, US102018–2021
Cupertino, California, US42015–2019
Santa Clara, California, US32019