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USPTO Patent Rankings Data through Dec 31, 2025
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Gregory Piefer — 15 Patents

STShine Technologies: 6 patents #6 of 29Top 25%
WARF: 2 patents #1,011 of 4,123Top 25%
Janesville, WI: #18 of 319 inventorsTop 6%
Wisconsin: #2,950 of 40,088 inventorsTop 8%
Overall (All Time): #307,048 of 4,157,543Top 8%
15 Patents All Time
Gregory Piefer has been granted 15 US patents while listed as an inventor at Shine Technologies. The first was granted in 2014 and the most recent in December 2025. Gregory Piefer ranks #307,048 of 4,157,543 US inventors in our database (top 7.4%). Patent records list Gregory Piefer in Janesville, WI, US.

Patents per Year

Patents granted per year, 2014 to 2025Bar chart with a peak of 4 patents in 2025.peak 42014: 1 patents20142015: 1 patents20152017: 1 patents20172019: 1 patents20192020: 1 patents20202021: 1 patents20212022: 2 patents20222023: 1 patents20232024: 2 patents20242025: 4 patents2025

Issued Patents All Time

Showing 1–15 of 15 patents

Patent #TitleCo-InventorsDate
12505931 Segmented reaction chamber for radioisotope production Thomas R. Mackie 2025-12-23
12444515 Device and method for producing medical isotopes — 2025-10-14
12342447 Ion source and neutron generator Richard Sisson 2025-06-24
12247268 Separation of rare earth elements Eric Van Abel, Richard Sisson 2025-03-11
12157930 Separation of rare earth elements Eric Van Abel, Richard Sisson 2024-12-03
11894157 Segmented reaction chamber for radioisotope production Thomas R. Mackie 2024-02-06
11830637 Device and method for producing medical isotopes — 2023-11-28
11361873 Aqueous assembly and control method Eric Van Abel 2022-06-14
11238999 Apparatus and method for generating medical isotopes Thad Alexander Heltemes, Eric Van Abel, Ross Radel 2022-02-01
10978214 Segmented reaction chamber for radioisotope production Thomas R. Mackie 2021-04-13
10734126 Methods of separating medical isotopes from uranium solutions — 2020-08-04
10332646 Apparatus and method for generating medical isotopes Thad Alexander Heltemes, Eric Van Abel, Ross Radel 2019-06-25
9734926 Device and method for producing medical isotopes — 2017-08-15
9024261 Method and apparatus for performing active neutron interrogation of containters — 2015-05-05
8837662 High energy proton or neutron source — 2014-09-16

Frequent Collaborators

Eric Van Abel5 shared
Richard Sisson3 shared
Thomas R. Mackie3 shared
Ross Radel2 shared
Thad Alexander Heltemes2 shared

Nearby-Ranked Inventors

Naoya Kasahara15
Aaron Larry Snyder15
Avishay Meron15
Stuart Hatfield15
Satoshi KUNIYASU15
Ashton Mason15
Theodore Yuchiang Cheng15
Richard Sharbaugh15
Rajen Bhatt15