RR

Raymond R. Rydman

DB Dow Brands: 2 patents #11 of 60Top 20%
DO Dowbrands: 2 patents #10 of 50Top 20%
SS S.C. Johnson Home Storage: 1 patents #65 of 99Top 70%
📍 Coleman, MI: #6 of 32 inventorsTop 20%
🗺 Michigan: #18,390 of 86,293 inventorsTop 25%
Overall (All Time): #1,047,967 of 4,157,543Top 30%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
6021557 Process of making a zipper for a reclosable thermoplastic bag Brian C. Dais, Jose Porchia 2000-02-08
5962040 Apparatus for making a zipper for a reclosable thermoplastic bag Brian C. Dais, Jose Porchia 1999-10-05
5478228 Apparatus for making a zipper for a reclosable thermoplastic bag Brian C. Dais, Jose Porchia, John O. McCree, Bertha R. Vaughn 1995-12-26
5307552 Method of making a zipper for reclosable thermoplastic bag Brian C. Dais, Jose Porchia, John O. McCree, Bertha R. Vaughn 1994-05-03
5070584 Zipper for a reclosable thermoplastic bag and a process and apparatus for making Brian C. Dais, Jose Porchia, John O. McCree, Bertha R. Vaughn 1991-12-10