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USPTO Patent Rankings Data through Dec 31, 2025
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Robert Du — 13 Patents

Sony: 16 patents #2,638 of 25,231Top 15%
Intel: 3 patents #10,444 of 30,777Top 35%
SYSynopsys: 1 patents #1,143 of 2,302Top 50%
Danville, CA: #170 of 1,210 inventorsTop 15%
California: #47,433 of 386,348 inventorsTop 15%
Overall (All Time): #362,438 of 4,157,543Top 9%
13 Patents All Time
Robert Du has been granted 13 US patents while listed as an inventor at Sony. The first was granted in 2003 and the most recent in December 2025. Robert Du ranks #362,438 of 4,157,543 US inventors in our database (top 8.7%). Patent records list Robert Du in Danville, CA, US.

Issued Patents All Time

Showing 1–13 of 13 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12490682 Method for rapidly restoring Phragmites australis population in degraded land through stolon domestication Xiaojin Harry Li, Bolong Wen, Mingxing Wang, Rui Duan, Tiantian Gan 2025-12-09
8775182 Method and apparatus for speech segmentation Ye Tao, Daren Zu 2014-07-08 $15,420,000
8442822 Method and apparatus for speech segmentation Ye Tao, Daren Zu 2013-05-14 $17,697,000
8045767 Fingerprint image reconstruction based on motion estimate across a narrow fringerprint sensor Chinping Yang, Chon In Kou, Shuang Li 2011-10-25 $220,000
7873522 Measurement of spoken language training, learning and testing Lingfei Song, Nan Li, Minerva M. Yeung 2011-01-18 $38,657,000
7668317 Audio post processing in DVD, DTV and other audio visual products Chinping Yang 2010-02-23 $613,000
7634139 System and method for efficiently performing a pattern matching procedure Chinping Yang 2009-12-15 $687,000
7260813 Method and apparatus for photomask image registration Ronald J. Lesnick, Jr., John T. Nogatch 2007-08-21 $3,063,000
7212658 System for fingerprint image reconstruction based on motion estimate across a narrow fingerprint sensor Chinping Yang, Chon In Kou 2007-05-01 $1,058,000
7194116 Fingerprint image reconstruction based on motion estimate across a narrow fingerprint sensor Chinping Yang, Chon In Kou, Shuang Li 2007-03-20 $1,053,000
7167888 System and method for accurately calculating a mathematical power function in an electronic device Chinping Yang 2007-01-23 $1,146,000
6917915 Memory sharing scheme in audio post-processing Chinping Yang 2005-07-12 $587,000
6580377 Huffman decoding using cascaded sub-table lookup method Chinping Yang 2003-06-17 $415,000

Nearby-Ranked Inventors

Jianping Shen13
Eric John Telfeyan13
George R. Breiwa, III13
Thomas Sugar13
Andrew Howley13
Howard Halpern13
Po-Yuan Wang13
Douglas Vanesko13
Tanuj Trivedi13