Inventor

Ivan Riis Nielsen

Inventor

StenlÃ¸se, DK

Overview

1999–2020

Patent span

Electricity

Primary field (CPC H)

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

H04Rprimary

H04RLoudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers38%

G05FSystems for regulating electric or magnetic variables10%

H02MApparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems10%

H03FAmplifiers10%

H03GControl of amplification10%

H03HImpedance networks, e.g. resonant circuits10%

H04BTransmission10%

H03MCoding5%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

1999Based in Kobenhavn, DK· patent location history

2003–2012Based in Farum, DK· patent location history

2012–2017Patents assigned to NIELSEN IVAN RIIS (5)· patent assignee history

2012Patents assigned to GN RESOUND AS (1)· patent assignee history

2016–2018Patents assigned to EPCOS AG (3)· patent assignee history

2016–2018Based in StenlÃ¸se, DK· patent location history

2017–2018Patents assigned to TDK CORP (3)· patent assignee history

2019–2020Patents assigned to GN HEARING AS (2)· patent assignee history

2019Based in Ganlose, DK· patent location history

2020Based in Ganløse, DK· patent location history

Assignee and location history derived from the patent record.

Assignees

Locations