WH

William M. Heyn

PI Polystar Packaging, Incorporated: 7 patents #2 of 5Top 40%
CA Continental Ag: 4 patents #57 of 565Top 15%
Overall (All Time): #379,575 of 4,157,543Top 10%
13
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
10287039 Induction heat sealed container closures 2019-05-14
8052367 Angled sealing surface for container end panel 2011-11-08
6258312 Method for producing a container closure 2001-07-10
6033613 Method of molding a peripheral frame with a panel insert Robert W. Fraser, Donald J. Roth 2000-03-07
5830398 Method for forming container closure Donald J. Roth 1998-11-03
5360588 Method of making an injection molded frame having a panel insert Robert W. Fraser, Donald J. Roth 1994-11-01
5273416 Apparatus for making an injection molded frame having a panel insert Robert W. Fraser, Donald J. Roth 1993-12-28
5125528 Container closure, and method for producing same Donald J. Roth 1992-06-30
5085339 Reclosable container closure Donald J. Roth, Donald G. Sauer 1992-02-04
4440310 Closure for domed beverage containers and the like 1984-04-03
4427128 Can and closure therefor 1984-01-24
4407424 Plastic plug type closure for beverage containers 1983-10-04
4318494 Easy opening container with vent means 1982-03-09