MA

Michael J. Andrejcak

UI Unifrax I: 14 patents #2 of 49Top 5%
UN Unifrax: 3 patents #4 of 27Top 15%
CA Carborundum: 1 patents #54 of 126Top 45%
📍 Tonawanda, NY: #10 of 379 inventorsTop 3%
🗺 New York: #7,406 of 115,490 inventorsTop 7%
Overall (All Time): #233,673 of 4,157,543Top 6%
19
Patents All Time

Issued Patents All Time

Showing 1–19 of 19 patents

Patent #TitleCo-InventorsDate
12122704 Low biopersistence inorganic fiber free of crystalline silica Donghui Zhao, Bruce K. Zoitos, Jason Hamilton, Karen L. Hanson 2024-10-22
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
10301213 Inorganic fiber with improved shrinkage and strength Donghui Zhao, Bruce K. Zoitos, Jason Hamilton 2019-05-28
10023491 Inorganic fiber Donghui Zhao, Bruce K. Zoitos, Jason Hamilton, Karen L. Hanson 2018-07-17
9926224 Inorganic fiber with improved shrinkage and strength Donghui Zhao, Bruce K. Zoitos, Jason Hamilton 2018-03-27
9919954 Inorganic fiber Bruce K. Zoitos 2018-03-20
9919957 Inorganic fiber Donghui Zhao, Bruce K. Zoitos, Jason Hamilton 2018-03-20
9708214 Inorganic fiber with improved shrinkage and strength Donghui Zhao, Bruce K. Zoitos, Jason Hamilton 2017-07-18
9567256 Inorganic fiber Bruce K. Zoitos 2017-02-14
9556063 Inorganic fiber with improved shrinkage and strength Donghui Zhao, Bruce K. Zoitos, Jason Hamilton 2017-01-31
8652980 Inorganic fiber Bruce K. Zoitos 2014-02-18
8551897 Inorganic fiber Bruce K. Zoitos, Paul M. Boymel 2013-10-08
7887917 Inorganic fiber Bruce K. Zoitos, Paul M. Boymel 2011-02-15
7468336 High temperature resistant vitreous inorganic fiber Bruce K. Zoitos, Paul M. Boymel 2008-12-23
7468337 High temperature resistant vitreous inorganic fiber Bruce K. Zoitos, Paul M. Boymel 2008-12-23
6953757 High temperature a resistant vitreous inorganic fiber Bruce K. Zoitos, Terry N. Travis 2005-10-11
6447906 Fireplace articles comprising non-white inorganic fibers and method of preparation Bruce K. Zoitos 2002-09-10
5354527 Process for making silicon carbide ceramic fibers Francis J. Frechette, Roger S. Storm, Viswanathan Venkatswaren, Jonathan J. Kim 1994-10-11