Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Prafulla Masalkar — 24 Patents

Microsoft: 18 patents #2,027 of 40,388Top 6%
Amazon: 4 patents #4,091 of 19,158Top 25%
Fujitsu Limited: 2 patents #10,930 of 24,456Top 45%
Issaquah, WA: #91 of 1,767 inventorsTop 6%
Washington: #3,621 of 76,902 inventorsTop 5%
Overall (All Time): #168,038 of 4,157,543Top 5%
24 Patents All Time
Prafulla Masalkar has been granted 24 US patents while listed as an inventor at Microsoft. The first was granted in 2002 and the most recent in July 2024. Prafulla Masalkar ranks #168,038 of 4,157,543 US inventors in our database (top 4.0%). Patent records list Prafulla Masalkar in Issaquah, WA, US.

Patents per Year

Patents granted per year, 2002 to 2024Bar chart with a peak of 5 patents in 2011.peak 52002: 2 patents20022011: 5 patents2012: 4 patents20122013: 1 patents2014: 3 patents20142015: 1 patents2016: 3 patents20162018: 1 patents2019: 1 patents20192023: 2 patents2024: 1 patents2024

Issued Patents All Time

Showing 1–24 of 24 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12032079 Optical detector system with multiple path lengths Rui Zhang, Jeff Clark Adams, Markus Duelli, Donald M. Cornwell, Jr. 2024-07-09 $295,229,000
11770598 Sensor assembly for acquiring images Rui Zhang, Markus Duelli, Umer Shahid, Baomin Wang 2023-09-26 $315,766,000
11579014 Optical detector system Rui Zhang, Jeff Clark Adams, Markus Duelli, Donald M. Cornwell, Jr. 2023-02-14 $171,873,000
10332089 Data synchronization system Yasser Baseer Asmi, Frank Florian Liberato, Jr., Daniel Bibireata, Bradley David Volen, Todd Schoepflin 2019-06-25 $111,951,000
9891309 Illumination light projection for a depth camera Joshua Mark Hudman 2018-02-13 $44,475,000
9456201 VCSEL array for a depth camera Marshall DePue, Zhaoming Zhu, Sridhar Canumalla, Eric Filer, Blair M. Kent +1 more 2016-09-27 $73,296,000
9443310 Illumination modules that emit structured light Joshua Mark Hudman 2016-09-13 $30,359,000
9297889 Illumination light projection for a depth camera Joshua Mark Hudman 2016-03-29 $42,787,000
8985455 Active tag codes Mark Plagge, Dawson Yee, Tommer Leyvand 2015-03-24 $16,695,000
8866889 In-home depth camera calibration Szymon Stachniak, Tommer Leyvand, Zhengyou Zhang, Leonardo G. Del Castillo, Zsolt Mathe 2014-10-21 $25,843,000
8730212 Illuminator for touch- and object-sensitive display Karlton D. Powell, Timothy Andrew Large, Steven Bathiche 2014-05-20 $34,318,000
8724887 Environmental modifications to mitigate environmental factors Alan Leach 2014-05-13 $35,108,000
8384694 Infrared vision with liquid crystal display device Karlton D. Powell, Zhiqiang Liu 2013-02-26 $11,012,000
8330822 Thermally-tuned depth camera light source Scott Charles McEldowney, Yun Fang 2012-12-11 $13,907,000
8218237 Rear-projection display Zhiqiang Liu, Karlton D. Powell 2012-07-10 $20,283,000
8169701 Diffusing screen 2012-05-01 $24,840,000
8136690 Sensing the amount of liquid in a vessel Yun Fang, David Morelock 2012-03-20 $19,292,000
8018442 Calibration of an optical touch-sensitive display device Nigel Keam 2011-09-13 $16,414,000
8004760 Rear-projection display Zhiqiang Liu, Karlton D. Powell 2011-08-23 $12,314,000
8004759 Diffusing screen 2011-08-23 $12,314,000
7973779 Detecting ambient light levels in a vision system 2011-07-05 $15,908,000
7874495 Reducing a visible presence of an optically readable tag 2011-01-25 $24,388,000
6445000 Photodetecting device Hiroji Ebe 2002-09-03
6441373 Infrared photodetector and method of manufacturing the same 2002-08-27