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Inventor

Roy Irwan

Inventor
Groningen, NL

Overview

7→
Patents
2002–2012
Patent span
Electricity
Primary field (CPC H)

Patents· 7 as inventor

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

H04Sprimary
H04SStereophonic systems45%
G10LSpeech analysis techniques or speech synthesis27%
G10HElectrophonic musical instruments9%
G11BInformation storage based on relative movement between record carrier and transducer9%
H04BTransmission9%
PatentTitleYear
RE043273'Generation of a sound signal'20127,489,792'Generation of a sound signal'20097,437,299'Coding of stereo signals'20087,359,522'Coding of stereo signals'20086,914,988'Audio reproducing device'20056,882,731'Multi-channel audio converter'20056,496,584'Multi-channel stereo converter for deriving a stereo surround and/or audio center signal'2002

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2002–2012Patents assigned to KONINKL PHILIPS ELECTRONICS NV (7)· patent assignee history
2002–2005Based in Eindhoven, NL· patent location history
2008–2009Based in Groningen, NL· patent location history
2012Patents assigned to AARTS RONALDUS MARIA (1)· patent assignee history
2012Patents assigned to IRWAN ROY (1)· patent assignee history
2012Patents assigned to SCHOBBEN DANIEL WILLEM ELISABETH (1)· patent assignee history
2012Based in The Hague, NL· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
KONINKL PHILIPS ELECTRONICS NV72002–2012
AARTS RONALDUS MARIA12012
IRWAN ROYself12012
SCHOBBEN DANIEL WILLEM ELISABETH12012
Locations
LocationPatentsSpan
Groningen, NL32008–2009
Eindhoven, NL32002–2005
The Hague, NL12012