PT

Peter Tham

KC Koppers Performance Chemicals: 3 patents #2 of 5Top 40%
Overall (2021): #67,425 of 548,734Top 15%
3
Patents 2021

Issued Patents 2021

Patent #TitleCo-InventorsDate
11173626 Stable wood preservative formulations Jun Zhang 2021-11-16
11140901 Wood preservative and method for producing same Jun Zhang, John Horton 2021-10-12
11102980 Method of preparing copper-containing wood preserving compositions Jun Zhang 2021-08-31