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Inventor

Johann Freundorfer

Inventor
Bogen, DE

Overview

4→
Patents
2000–2018
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.

G10Kprimary
G10KSound-producing devices43%
H04RLoudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers43%
H01FMagnets14%
PatentTitleYear
10,056,066Active noise reduction20189,734,814'Active noise reduction'20179,099,076'Active noise reduction'20156,150,914'Transformer with divided primary winding used in a blocking-oscillator supply circuit'2000

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2000Patents assigned to BOSCH GMBH ROBERT (1)· patent assignee history
2000–2018Based in Bogen, DE· patent location history
2015Patents assigned to HARMAN BECKER AUTOMOTIVE SYS (1)· patent assignee history
2017–2018Patents assigned to HARMAN BECKER AUTOMOTIVE SYSTEMS GMBH (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HARMAN BECKER AUTOMOTIVE SYSTEMS GMBH22017–2018
BOSCH GMBH ROBERT12000
HARMAN BECKER AUTOMOTIVE SYS12015
Locations
LocationPatentsSpan
Bogen, DE42000–2018