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Inventor

René Maas

Inventor
Hoofddorp, NL

Overview

5→
Patents
1995–2020
Patent span
Electricity
Primary field (CPC H)

Patents· 5 as inventor

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 transducers60%
H04QSelecting40%
PatentTitleYear
10,869,119Sound channel element with a valve and a transducer with the sound channel element202010,805,746Valve, a transducer comprising a valve, a hearing device and a method202010,425,714Ear bud or dome20195,513,179'Private branch exchange and line card to be used in such a private branch exchange'19965,450,486'Telecommunication system and a linecard'1995

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1995–1996Patents assigned to PHILIPS CORP (2)· patent assignee history
1995–1996Based in Amsterdam, NL· patent location history
2019–2020Patents assigned to SONION NEDERLAND BV (3)· patent assignee history
2019–2020Based in Hoofddorp, NL· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SONION NEDERLAND BV32019–2020
PHILIPS CORP21995–1996
Locations
LocationPatentsSpan
Hoofddorp, NL32019–2020
Amsterdam, NL21995–1996