Inventor
ZIECKER ROGER A
US12 patents
⚠️ This page may combine multiple inventors who share the name “ZIECKER ROGER A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NORDSON CORP
10 patentsUS6089413AJul 18, 2000
Liquid dispensing and recirculating module
NORDSON CORP153 citations98
US4983109AJan 8, 1991
Spray head attachment for metering gear head
NORDSON CORP130 citations97
US4785996ANov 22, 1988
Adhesive spray gun and nozzle attachment
NORDSON CORP917 citations97
US5292068AMar 8, 1994
One-piece, zero cavity nozzle for swirl spray of adhesive
NORDSON CORP76 citations96
USRE33481EDec 11, 1990
Adhesive spray gun and nozzle attachment
NORDSON CORP100 citations94
US5740963AApr 21, 1998
Self-sealing slot nozzle die
NORDSON CORP52 citations92
US5620139AApr 15, 1997
Nozzle adapter with recirculation valve
NORDSON CORP54 citations92
US5495963AMar 5, 1996
Valve for controlling pressure and flow
NORDSON CORP48 citations92
US5265800ANov 30, 1993
Adhesive spray gun with adjustable module and method of assembling
NORDSON CORP38 citations91
US5699938ADec 23, 1997
Molten thermoplastic material supply system with removable drive assembly
NORDSON CORP22 citations86