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USPTO Patent Rankings Data through Dec 31, 2025
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Robert E. Sandstrom — 14 Patents

ExxonMobil: 5 patents #2,147 of 10,161Top 25%
UNUnknown: 1 patents #29,356 of 83,584Top 40%
Longview, WA: #2 of 90 inventorsTop 3%
Washington: #7,280 of 76,902 inventorsTop 10%
Overall (All Time): #332,869 of 4,157,543Top 9%
14 Patents All Time
Robert E. Sandstrom has been granted 14 US patents while listed as an inventor at ExxonMobil. The first was granted in 2004 and the most recent in June 2023. Robert E. Sandstrom ranks #332,869 of 4,157,543 US inventors in our database (top 8.0%). Patent records list Robert E. Sandstrom in Longview, WA, US.

Issued Patents All Time

Showing 1–14 of 14 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
11670726 Method for improving photovoltaic cell efficiency 2023-06-06
11324962 Magnetic field enhancement of chemotherapy for tumor treatment 2022-05-10
11007277 Method of attacking target cells 2021-05-18
10744208 Method of attacking target cells 2020-08-18
9789328 Tumor treatment with free radical lifetimes enhanced by persistent low strength magnetic field 2017-10-17
9757582 Tumor treatment with free radical lifetimes enhanced by persistant low strength magnetic field 2017-09-12
8781201 Method of operating a pathology laboratory Lawrence A. Crum 2014-07-15
8561631 Liquid impact pressure control methods and systems Tin-Woo Yung, Haiping He 2013-10-22 $173,837,000
8448673 Transporting and transferring fluid Mark A. Danaczko, Mark C. Gentry 2013-05-28 $122,864,000
8436609 Method and apparatus for detection of a liquid under a surface Leonard J. Srnka, Timothy J. Nedwed, Hans Thomann 2013-05-07 $72,904,000
7540200 Method and apparatus for fluid flow testing Tin-Woo Yung, Scott T. Slocum, Zhong Ding, Leif Smitt 2009-06-02 $445,602,000
7469651 Lng sloshing impact reduction system Tin-Woo Yung 2008-12-30 $546,037,000
6926659 Magnetic field enhancement of tumor treatment 2005-08-09
6679827 Magnetic field enhancement of tumor treatment 2004-01-20