US Patent No: 4,820,440

Number of patents in Portfolio can not be more than 2000

Phosphate-free dishwasher detergent

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Importance

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Abstract

A detergent composition for dishwashers comprising anhydrous alkali carbonate, alkali metasilicate, and other, optional, ingredients, wherein the alkalis contain at least two different cations and phosphates are not present.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
HENKEL KOMMANDITGESELLSCHAFT AUF AKTIENDUESSELDORF1832

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hemm, Dieter Hilden, DE 7 94
Schindler, Norbert Langenfeld, DE 2 46

Cited Art

Patent Info (Count) # Cites Year
 
LEVER BROTHERS COMPANY (1)
4,457,322 Alkaline cleaning compositions non-corrosive toward aluminum surfaces 40 1983
 
RHONE-POULENC SURFACTANTS AND SPECIALTIES, L.P. (1)
4,203,858 Phosphate-free machine dishwashing composition 37 1977

Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
CHURCH & DWIGHT CO., INC. (12)
5,264,046 Aqueous electronic circuit assembly cleaner and cleaning method 17 1992
5,264,047 Low foaming effective hydrotrope 18 1992
5,261,967 Powdered electric circuit assembly cleaner 9 1992
5,234,505 Stabilization of silicate solutions 17 1992
5,234,506 Aqueous electronic circuit assembly cleaner and method 31 1992
5,397,495 Stabilization of silicate solutions 7 1993
5,393,448 Aqueous electronic circuit assembly cleaner and method 8 1993
5,433,885 Stabilization of silicate solutions 16 1993
RE35115 Low foaming effective hydrotrope 6 1994
RE35045 Method for removing soldering flux with alkaline metal carbonate salts and an alkali metal silicate 6 1994
RE35017 Method for removing soldering flux with alkaline salts, an alkali metal silicate and anionic polymer 7 1994
5,549,761 Method for removing rosin soldering flux from a printed wiring board 9 1995
 
ECOLAB INC. (12)
6,489,278 Combination of a nonionic silicone surfactant and a nonionic surfactant in a solid block detergent 7 1997
5,876,514 Warewashing system containing nonionic surfactant that performs both a cleaning and sheeting function and a method of warewashing 38 1997
6,164,296 Method of removing waxy/fatty soils from ware with a combination of a nonionic silicone surfactant and a nonionic surfactant 24 1999
6,369,021 Detergent composition and method for removing soil 21 1999
6,664,219 Combination of a nonionic silicone surfactant and a nonionic surfactant in a solid block detergent 4 2000
RE38262 Warewashing system containing nonionic surfactant that performs both a cleaning and sheeting function and a method of warewashing 7 2001
6,525,015 Detergent composition and method for removing soil 3 2002
6,649,586 Detergent composition and method for removing soil 1 2003
6,767,884 Combination of a nonionic silicone surfactant and a nonionic surfactant in a solid block detergent 2 2003
6,812,202 Detergent composition and method for removing soil 4 2003
6,956,019 Combination of a nonionic silicone surfactant and a nonionic surfactant in a solid block detergent 12 2004
7,199,095 Combination of a nonionic silicone surfactant and a nonionic surfactant in a solid block detergent 1 2005
 
CHARVID LIMITED LIABILITY COMPANY (6)
5,663,132 Non-caustic composition comprising peroxygen compound and metasilicate and cleaning methods for using same 8 1995
5,789,361 Non-caustic cleaning composition comprising peroxygen compound and specific silicate, and method of making same in free-flowing, particulate form 7 1996
5,863,345 Methods for removing foreign deposits from hard surfaces using non-caustic cleaning composition comprising peroxygen compound and specific silicate 5 1997
6,043,207 Non-caustic cleaning composition comprising peroxygen compound, meta/sesqui-silicate, chelate and method of making same in free-flowing, particulate form 0 1998
6,034,048 Non-caustic cleaning composition using an alkali salt 1 1998
6,194,367 Non-caustic cleaning composition comprising peroxygen compound and specific silicate and method of making the same in free-flowing, particulate form 3 1999
 
THE PROCTER & GAMBLE COMPANY (4)
5,292,446 Nonphosphated automatic dishwashing compositions with oxygen bleach systems and process for their preparation 32 1992
5,646,101 Machine dishwashing detergents containing an oxygen bleach and an anti-tarnishing mixture of a paraffin oil and sequestrant 17 1995
5,824,630 Machine dishwashing composition containing oxygen bleach and paraffin oil and nitrogen compound silver tarnishing inhibitors 1 1996
5,776,874 Anti-tarnishing machine dishwashing detergent compositions containing a paraffin oil 5 1996
 
BARRIS; CHARLES B. (1)
5,431,847 Aqueous cleaning concentrates 22 1993
 
CHARVID LIMITED LIABILITY (1)
5,898,024 Non-caustic cleaning composition comprising peroxygen compound and specific silicate, and method of making the same in free-flowing, particulate form 1 1997
 
COLGATE-PALMOLIVE COMPANY (1)
5,618,465 Nonaqueous liquid automatic dishwashing composition containing enzymes 2 1994
 
EKA NOBEL AB (1)
5,395,543 Freeflowing alkaline detergent, and agents for the preparation thereof 6 1994
 
YAMANOUCHI CONSUMER INC (1)
5,256,327 Method of preparing a sequestering agent for a non-phosphate cleaning composition 12 1992