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USPTO Patent Rankings Data through Dec 31, 2025
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David P. Rossum — 41 Patents

CTCreative Technology: 17 patents #12 of 358Top 4%
ESE-Mu Systems: 10 patents #1 of 10Top 10%
KEKnowles Electronics: 4 patents #78 of 325Top 25%
APAudience Partners: 3 patents #13 of 34Top 40%
Santa Cruz, CA: #69 of 1,911 inventorsTop 4%
California: #11,075 of 386,348 inventorsTop 3%
Overall (All Time): #75,001 of 4,157,543Top 2%
41 Patents All Time
David P. Rossum has been granted 41 US patents while listed as an inventor at Creative Technology. The first was granted in 1983 and the most recent in December 2021. David P. Rossum ranks #75,001 of 4,157,543 US inventors in our database (top 1.8%). Patent records list David P. Rossum in Santa Cruz, CA, US.

Issued Patents All Time

Showing 1–25 of 41 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
11202147 Audio filter with through-zero linearly variable resonant frequency 2021-12-14
11087732 Oscillatory timbres for musical synthesis through synchronous ring modulation 2021-08-10
11029914 Multi-core audio processor with phase coherency Erick Alvarado 2021-06-08 $9,985,000
10514883 Multi-channel morphing digital audio filter 2019-12-24
10469967 Utilizing digital microphones for low power keyword detection and noise suppression Niel D. Warren 2019-11-05
10045140 Utilizing digital microphones for low power keyword detection and noise suppression Niel D. Warren 2018-08-07 $3,549,000
9711144 Microphone apparatus and method with catch-up buffer Dibyendu Nandy, Yang Li, Ramanujapuram Raghuvir, Robert A. Popper, Andrzej Pawlowski +3 more 2017-07-18 $2,543,000
9478234 Microphone apparatus and method with catch-up buffer Dibyendu Nandy, Yang Li, Ramanujapuram Raghuvir, Robert A. Popper, Andrzej Pawlowski +3 more 2016-10-25 $7,976,000
9337805 Efficient digital microphone decimation filter architecture 2016-05-10
9236874 Reducing data transition rates between analog and digital chips 2016-01-12
8965942 Systems and methods for sample rate tracking Sneha Bhalchandra Date, Xiaojun Chen 2015-02-24 $1,465,000
8618961 Sample rate conversion using infinite impulse response filters Dana Massie, Brian T. Clark, Leonardo Rub, Jean Laroche 2013-12-31 $1,552,000
7280878 Sample rate converter having distributed filtering 2007-10-09
7248934 Method of transmitting a one-dimensional signal using a two-dimensional analog medium Mark Dolson, Jean Laroche, Wong Hoo Sim 2007-07-24 $1,366,000
6858790 Digital sampling instrument employing cache memory 2005-02-22 $9,246,000
6622207 Interpolation looping of prioritized audio samples in cache connected to system bus 2003-09-16 $7,735,000
6365816 Digital sampling instrument employing cache memory 2002-04-02 $10,772,000
6324235 Asynchronous sample rate tracker Thomas C. Savell 2001-11-27 $6,597,000
6138207 Interpolation looping of audio samples in cache connected to system bus with prioritization and modification of bus transfers in accordance with loop ends and minimum block sizes 2000-10-24 $8,976,000
6137043 Digital sampling instrument employing cache memory 2000-10-24 $8,976,000
6091269 Method and apparatus for creating different waveforms when synthesizing musical sounds 2000-07-18 $12,341,000
6092126 Asynchronous sample rate tracker with multiple tracking modes 2000-07-18 $12,341,000
6016522 System for switching between buffers when receiving bursty audio by computing loop jump indicator plus loop start address for read operations in selected buffer 2000-01-18
5943427 Method and apparatus for three dimensional audio spatialization Dana Massie, John Sun, Sol Friedman, William L. Martens 1999-08-24 $13,581,000
5928342 Audio effects processor integrated on a single chip with a multiport memory onto which multiple asynchronous digital sound samples can be concurrently loaded Jay Scott Fuller 1999-07-27 $7,626,000