Per Ahgren — 21 Patents at Microsoft

Per Ahgren has been granted 21 US patents while listed as an inventor at Microsoft. The first was granted in 2013 and the most recent in November 2018. Per Ahgren ranks #201,324 of 4,157,543 US inventors in our database (top 4.8%). Patent records list Per Ahgren in Knivsta, SE.

Issued Patents All Time

Showing 1–21 of 21 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
10129408	Residual echo detection based on non-causality	Ivo Creusen, Tina le Grand	2018-11-13	$19,575,000
9913026	Reversed echo canceller	Karsten V. Sørensen	2018-03-06	$61,110,000
9591123	Echo cancellation	Karsten Vandborg Sorensen	2017-03-07	$28,472,000
9521264	Echo removal	—	2016-12-13	$34,425,000
9467571	Echo removal	—	2016-10-11	$78,026,000
9420390	Estimation and suppression of harmonic loudspeaker nonlinearities	Anders Eriksson	2016-08-16	$528,000
9277059	Echo removal	—	2016-03-01	$41,986,000
9264804	Noise suppressing method and a noise suppressor for applying the noise suppressing method	Anders Eriksson, Zohra Yermeche	2016-02-16	$272,000
9177566	Noise suppression method and apparatus	Anders Eriksson	2015-11-03	$438,000
9172816	Echo suppression	—	2015-10-27	$47,916,000
9167342	Echo suppression	—	2015-10-20	$32,084,000
9154873	Echo suppression	—	2015-10-06	$38,348,000
9111543	Processing signals	—	2015-08-18	$29,234,000
9042573	Processing signals	Karsten Vandborg Sorensen	2015-05-26	$39,842,000
9031257	Processing signals	Karsten Vandborg Sorensen	2015-05-12	$40,939,000
8983058	Echo canceller and a method thereof	Anders Eriksson	2015-03-17	$458,000
8971522	Noise reduction	Jesus de Vicente Peña	2015-03-03	$20,156,000
8824693	Processing audio signals	—	2014-09-02	$31,345,000
8756055	Systems and methods for improving the intelligibility of speech in a noisy environment	Anders Eriksson	2014-06-17	$839,000
8688758	Systems and methods for filtering a signal	—	2014-04-01	$387,000
8538034	Method and arrangement for echo cancellation of voice signals	Anders Eriksson	2013-09-17	$439,000

Per Ahgren — 21 Patents

Issued Patents All Time

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