MA

Michael J. Andrejcak

UI Unifrax I: 2 patents #2 of 8Top 25%
Overall (2021): #131,586 of 548,734Top 25%
2
Patents 2021

Issued Patents 2021

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
11203551 Low biopersistence inorganic fiber free of crystalline silica Donghui Zhao, Bruce K. Zoitos, Jason Hamilton, Karen L. Hanson 2021-12-21
10882779 Inorganic fiber Donghui Zhao, Bruce K. Zoitos, Jason Hamilton 2021-01-05