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USPTO Patent Rankings Data through Dec 31, 2025
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Koppers Delaware — 2 Patents in 2021

Rank (2021): #15,910 of 31,506Top 55%
9 inventors
2 Patents 2021

Top Inventors at Koppers Delaware 2021

Showing 1–9 of 9 inventors

RankNamePatents
1 John W. Mospan 2
2 Donald A. Bielski 1
2 John M. Downey 1
2 Patrick J. Boario 1
2 Richard Jarosinski 1
2 Ronald K. Junk 1
2 Steven D. Singleton 1
2 W. Thomas Urmson, Jr. 1
2 William T. Urmson, Jr. 1