HC

Helena L. Chum

MI Midwest Research Institute: 4 patents #1 of 34Top 3%
📍 Arvada, CO: #7 of 46 inventorsTop 20%
🗺 Colorado: #34 of 1,784 inventorsTop 2%
Overall (1994): #6,229 of 165,921Top 4%
4
Patents 1994

Issued Patents 1994

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
5359061 Controlled catalytic and thermal sequential pyrolysis and hydrolysis of polymer waste comprising nylon 6 and a polyolefin or mixtures of polyolefins to sequentially recover monomers or other high value products Robert J. Evans 1994-10-25
5359099 Controlled catalytic and thermal sequential pyrolysis and hydrolysis of mixed polymer waste streams to sequentially recover monomers or other high value products Robert J. Evans 1994-10-25
5321174 Controlled catalystic and thermal sequential pyrolysis and hydrolysis of polycarbonate and plastic waste to recover monomers Robert J. Evans 1994-06-14
5300704 Controlled catalytic and thermal sequential pyrolysis and hydrolysis of mixed polymer waste streams to sequentially recover monomers or other high value products Robert J. Evans 1994-04-05