Inventor
BEHR R DOUGLAS
19 patents
⚠️ This page may combine multiple inventors who share the name “BEHR R DOUGLAS”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
DOW CHEMICAL CO
14 patentsUS4837849AJun 6, 1989
Stand-up plastic bag and method of making same
DOW CHEMICAL CO171 citations97
US4829745AMay 16, 1989
Tube spreader for removing wrinkles in tube stock
DOW CHEMICAL CO59 citations96
US4727709AMar 1, 1988
Steering, joining and guiding mechanism for zippered film
DOW CHEMICAL CO96 citations96
US4954124ASep 4, 1990
Stand-up plastic bag and method of making same
DOW CHEMICAL CO61 citations94
US4698954AOct 13, 1987
Guide for zippered film in a form, fill and seal packaging machine
DOW CHEMICAL CO34 citations92
US4295919AOct 20, 1981
Forming an integral closure for a thermoplastic container
DOW CHEMICAL CO46 citations92
US4263079AApr 21, 1981
Method of forming an integral closure for a thermoplastic container
DOW CHEMICAL CO43 citations92
US4812192AMar 14, 1989
Process and apparatus for cutting and sealing multiple plies of thermoplastic material having thickened sections
DOW CHEMICAL CO43 citations91
US5030190AJul 9, 1991
Gussetted plastic bags having relief seals and method of making same
DOW CHEMICAL CO47 citations90
US5074951ADec 24, 1991
Apparatus for inert atmosphere sealing
DOW CHEMICAL CO18 citations73
US4959044ASep 25, 1990
Film tension compensation device for bag making machine
DOW CHEMICAL CO18 citations73
US4902374AFeb 20, 1990
Bag making machine
DOW CHEMICAL CO10 citations73
US4358334ANov 9, 1982
Forming an integral closure for a thermoplastic container
DOW CHEMICAL CO6 citations63
US3990824ANov 9, 1976
Film size control apparatus for the blown film process
DOW CHEMICAL CO3 citations63