P

Inventor

RYDMAN RAYMOND R

US5 patents
⚠️ This page may combine multiple inventors who share the name “RYDMAN RAYMOND R”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

DOWBRANDS LP

3 patents
US5478228ADec 26, 1995

Apparatus for making a zipper for a reclosable thermoplastic bag

DOWBRANDS LP63 citations96
US5307552AMay 3, 1994

Method of making a zipper for reclosable thermoplastic bag

DOWBRANDS LP73 citations95
US5962040AOct 5, 1999

Apparatus for making a zipper for a reclosable thermoplastic bag

DOWBRANDS LP42 citations92

DOWBRANDS INC

1 patent
US5070584ADec 10, 1991

Zipper for a reclosable thermoplastic bag and a process and apparatus for making

DOWBRANDS INC229 citations97

S C JOHNSON HOME STORAGE INC

1 patent
US6021557AFeb 8, 2000

Process of making a zipper for a reclosable thermoplastic bag

S C JOHNSON HOME STORAGE INC72 citations96