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USPTO Patent Rankings Data through Dec 31, 2025
Home › 2021 › Inventors › Stephen A. Hamstra
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Stephen A. Hamstra — 1 Patent in 2021

Zeeland, MI: #24 of 47 inventorsTop 55%
Michigan: #3,301 of 9,874 inventorsTop 35%
Overall (2021): #251,895 of 548,734Top 50%
1 Patents 2021

Issued Patents 2021

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
11092353 System for optimization of building heating and cooling systems — 2021-08-17

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Stefan Hammes1