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Inventor

Dion I. de Roo

Inventor
Voorburg, NL

Overview

11→
Patents
2004–2019
Patent span
Electricity
Primary field (CPC H)

Patents· 11 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 transducers73%
Y10TTechnical subjects covered by former us classification20%
H05KPrinted circuits7%
PatentTitleYear
10,327,072Phase correcting system and a phase correctable transducer system20199,264,798'Dual cartridge directional microphone'20168,280,082'Electret assembly for a microphone having a backplate with improved charge stability'20127,684,575'Electret assembly for a microphone having a backplate with improved charge stability'20107,286,680'Cylindrical microphone having an electret assembly in the end cover'20077,260,236'Wind noise suppression in directional microphones'20077,239,714'Microphone having a flexible printed circuit board for mounting components'20077,136,496'Electret assembly for a microphone having a backplate with improved charge stability'20067,062,058'Cylindrical microphone having an electret assembly in the end cover'20066,937,735'Microphone for a listening device having a reduced humidity coefficient'20056,823,073'Directional microphone assembly'2004

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2004–2007Patents assigned to SONIONMICROTRONIC NEDERLAND (3)· patent assignee history
2004–2007Based in Leidschendam, NL· patent location history
2005–2016Based in Voorburg, NL· patent location history
2006–2019Patents assigned to SONION NEDERLAND BV (8)· patent assignee history
2012Patents assigned to BOSMAN MICHEL (1)· patent assignee history
2012Patents assigned to DE NOOIJ MICHEL (1)· patent assignee history
2012Patents assigned to DE ROO DION I (1)· patent assignee history
2019Based in Hoofddorp, NL· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SONION NEDERLAND BV82006–2019
SONIONMICROTRONIC NEDERLAND32004–2007
BOSMAN MICHEL12012
DE NOOIJ MICHEL12012
DE ROO DION Iself12012
Locations
LocationPatentsSpan
Voorburg, NL82005–2016
Leidschendam, NL22004–2007
Hoofddorp, NL12019