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Johan Boersma

Sony: 1 patents #1,440 of 4,065Top 40%

Emmen, NL: #5 of 12 inventorsTop 45%

Overall (2011): #264,532 of 364,097Top 75%

1 Patents 2011

Issued Patents 2011

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
7903826	Headset with ambient sound	—	2011-03-08