Inventor
DWINELL DAVIS B
US16 patents
⚠️ This page may combine multiple inventors who share the name “DWINELL DAVIS B”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
AMERICAN FLANGE & MFG
12 patentsUS6726048B2Apr 27, 2004
Drum plug and seal
AMERICAN FLANGE & MFG37 citations92
US4520942AJun 4, 1985
Container closure having a frangible outer cap
AMERICAN FLANGE & MFG41 citations92
US4236629ADec 2, 1980
Nestable pouring spout assembly
AMERICAN FLANGE & MFG37 citations92
US4117949AOct 3, 1978
Threaded closure
AMERICAN FLANGE & MFG39 citations92
US4022357AMay 10, 1977
Retractable pouring spout closure
AMERICAN FLANGE & MFG48 citations92
US4568006AFeb 4, 1986
Nestable self-venting spout
AMERICAN FLANGE & MFG49 citations90
US4442949AApr 17, 1984
Tear open closure assembly
AMERICAN FLANGE & MFG34 citations90
US4146148AMar 27, 1979
Frangible closure for containers and method
AMERICAN FLANGE & MFG25 citations79
US6868993B2Mar 22, 2005
Pail vent and method
AMERICAN FLANGE & MFG3 citations62
USD344893SMar 8, 1994
Ultra-sonic welding horn
AMERICAN FLANGE & MFG2 citations62
US4905862AMar 6, 1990
Protective closure
AMERICAN FLANGE & MFG6 citations60
USD381181SJul 15, 1997
Drain outlet hole and residue drain
AMERICAN FLANGE & MFG1 citations51
LEER KONINKLIJKE EMBALLAGE
4 patentsUS5906288AMay 25, 1999
Anti-glug vent for plastic pails
LEER KONINKLIJKE EMBALLAGE31 citations92
US5221028AJun 22, 1993
Pail closure with spout and improved seal
LEER KONINKLIJKE EMBALLAGE27 citations92
US6386405B1May 14, 2002
Snap on closure and method
LEER KONINKLIJKE EMBALLAGE22 citations91
US5256225AOct 26, 1993
Pail closure application method
LEER KONINKLIJKE EMBALLAGE12 citations73