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USPTO Patent Rankings Data through Dec 31, 2025
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Christopher Raymond Grajewski — 15 Patents

Amazon: 15 patents #877 of 19,158Top 5%
Sammamish, WA: #347 of 2,558 inventorsTop 15%
Washington: #6,706 of 76,902 inventorsTop 9%
Overall (All Time): #307,048 of 4,157,543Top 8%
15 Patents All Time
Christopher Raymond Grajewski has been granted 15 US patents while listed as an inventor at Amazon. The first was granted in 2018 and the most recent in April 2025. Christopher Raymond Grajewski ranks #307,048 of 4,157,543 US inventors in our database (top 7.4%). Patent records list Christopher Raymond Grajewski in Sammamish, WA, US.

Issued Patents All Time

Showing 1–15 of 15 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12272053 Systems for determining elevations of skin features Layne Christopher Price, Ilia Vitsnudel, David E. Heckerman, Adrian Napoles, Patrick Chow +1 more 2025-04-08
12156716 Radio frequency biosensor with integrated compensation Adrian Napoles, Andreas Caduff, David E. Heckerman 2024-12-03 $636,897,000
12029557 Radio frequency antenna for wearable device Justin Christopher Kenny, Adrian Napoles, Andreas Caduff, David E. Heckerman 2024-07-09 $295,229,000
11650625 Multi-sensor wearable device with audio processing Maya Shirish Sathaye, Joshua John Watson, Matthew Tyler Wilkinson, Sameet Ramakrishnan 2023-05-16 $401,723,000
11340373 System to determine portable device presence at a portal Qicai Shi, Camerin Cole Hahn 2022-05-24 $187,963,000
11087274 System to detect event at an inventory location Camerin Cole Hahn, Qicai Shi, Vinod L. Hingorani, Elizabeth Ann Zitzer, Somasundaram Niranjayan 2021-08-10 $167,299,000
11068841 RFID enabled and location aware pallet mover Tak Keung Joseph Lui, Oleg Kantor, David Bruce McCalib, Jr., Alton Paul Werronen 2021-07-20 $240,804,000
11057751 User identification system using directional antennas and cameras Somasundaram Niranjayan, Camerin Cole Hahn, Qicai Shi, Matthew R. Perkins 2021-07-06 $514,487,000
10969461 Electromagnetic tracking of moveable device with orientation determination Nathan Pius O'Neill, Nikolai Orlov 2021-04-06 $247,415,000
10460137 Dynamic RFID tag singulation using state information masking Joshua David Landry, Oleg Kantor, Tak Keung Joseph Lui, David Bruce McCalib, Jr., Roman Shmulevich +4 more 2019-10-29 $88,044,000
10459103 Magnetic entry portal identification system Qicai Shi, Camerin Cole Hahn 2019-10-29 $88,044,000
10262294 Location estimation using array of capacitive sensors Camerin Cole Hahn, Qicai Shi, Vinod L. Hingorani, Nathan Pius O'Neill 2019-04-16 $111,008,000
10244363 Entry portal identification system Somasundaram Niranjayan, Camerin Cole Hahn, Qicai Shi, Matthew R. Perkins 2019-03-26 $94,773,000
10198710 System to determine a change in weight at a load cell Camerin Cole Hahn, Qicai Shi, Vinod L. Hingorani, Nathan Pius O'Neill 2019-02-05 $120,378,000
10007892 Capacitive sensor system Camerin Cole Hahn, Qicai Shi, Vinod L. Hingorani, Elizabeth Ann Zitzer, Somasundaram Niranjayan 2018-06-26 $168,528,000