Inventor
ENGLHARD RONALD F
40 patents
⚠️ This page may combine multiple inventors who share the name “ENGLHARD RONALD F”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HAYES PRODUCTS LLC
18 patentsUS6578776B1Jun 17, 2003
Single valve ready to use hose end sprayer
HAYES PRODUCTS LLC79 citations97
US5860574AJan 19, 1999
Pump assembly with bayonet lock
HAYES PRODUCTS LLC47 citations96
US6296154B1Oct 2, 2001
Pump assembly with one piece piston
HAYES PRODUCTS LLC23 citations93
US6089414AJul 18, 2000
Pump assembly with one piece piston
HAYES PRODUCTS LLC29 citations93
US5918782AJul 6, 1999
Pump assembly with sprayer
HAYES PRODUCTS LLC27 citations93
USD407312SMar 30, 1999
Sprayer
HAYES PRODUCTS LLC17 citations93
US5816447AOct 6, 1998
Non-aerosol pump spray apparatus
HAYES PRODUCTS LLC30 citations93
US5810211ASep 22, 1998
Pump assembly with sliding plug
HAYES PRODUCTS LLC32 citations93
USD484572SDec 30, 2003
Valve of a hose end sprayer
HAYES PRODUCTS LLC14 citations92
USD451581SDec 4, 2001
Hose end sprayer
HAYES PRODUCTS LLC29 citations92
US7063277B2Jun 20, 2006
Single longitudinal valve ready to use hose end sprayer
HAYES PRODUCTS LLC14 citations84
US6360922B1Mar 26, 2002
Pump assembly with pressure release capability
HAYES PRODUCTS LLC15 citations84
USD552946SOct 16, 2007
Spreader
HAYES PRODUCTS LLC7 citations74
USD418201SDec 28, 1999
Bottle, pump and sprayer assembly
HAYES PRODUCTS LLC13 citations74
USD417618SDec 14, 1999
Pump assembly
HAYES PRODUCTS LLC11 citations74
USD402205SDec 8, 1998
Bottle
HAYES PRODUCTS LLC10 citations74
US7229030B2Jun 12, 2007
Single valve ready to use hose end sprayer
HAYES PRODUCTS LLC4 citations63
US6772920B2Aug 10, 2004
Pump assembly with one piece piston
HAYES PRODUCTS LLC2 citations63
MEADWESTVACO CALMAR INC
7 patentsUS7789275B2Sep 7, 2010
Pump assembly with continuous tube
MEADWESTVACO CALMAR INC11 citations84
US7631819B2Dec 15, 2009
Longitudinal valve ready to use hose end sprayer
MEADWESTVACO CALMAR INC14 citations84
US7325752B2Feb 5, 2008
Single valve ready to use hose end sprayer
MEADWESTVACO CALMAR INC12 citations84
US7350722B2Apr 1, 2008
Single valve ready to use sprayer
MEADWESTVACO CALMAR INC7 citations74
US7341168B2Mar 11, 2008
Pump assembly with piston
MEADWESTVACO CALMAR INC4 citations74
US7328857B2Feb 12, 2008
Single longitudinal valve ready to use hose end sprayer
MEADWESTVACO CALMAR INC6 citations74
US7427004B2Sep 23, 2008
Hand held pressurized sprayer
MEADWESTVACO CALMAR INC3 citations63