US Patent No: 4,618,914

Number of patents in Portfolio can not be more than 2000

Electrical insulating oil and oil-filled electrical appliances

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Importance

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Abstract

An improved electrical insulating oil which is stable in refining treatment and good electrical properties are maintained under high temperature conditions, and oil-filled electrical appliances impregnated therewith. The electrical insulating oil comprises 1,1,-diarylalkenes which are represented by the following general formula (I): ##STR1## wherein R.sub.1 to R.sub.4 's are the same or different and each of them is a hydrogen atom or an alkyl group having 1 to 5 carbon atoms, and m and n are integers from 0 to 3, inclusive.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
NIPPON PETROCHEMICALS COMPANY, LIMITEDTOKYO318

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Endo, Keiji Tochigi, JP 84 472
Hayashi, Shozo Yokohama, JP 18 263
Kawakami, Shigenobu Tokyo, JP 45 394
Sato, Atsushi Kyoto, JP 294 1339
Yanagishita, Hitoshi Kanagawa, JP 12 285

Cited Art

Patent Info (Count) # Cites Year
 
NIPPON PETROCHEMICALS COMPANY, LIMITED (2)
4,493,943 Electrical insulating oil and oil-filled electrical appliances 31 1983
4,506,107 Electrical insulating oil and oil-filled electrical appliances 11 1984

Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
ECOLAB INC. (37)
6,673,765 Method of making non-caustic solid cleaning compositions 3 2000
6,436,893 Alkaline detergent containing mixed organic and inorganic sequestrants resulting in improved soil removal 6 2000
6,410,495 Stable solid block metal protecting warewashing detergent composition 28 2000
6,638,902 Stable solid enzyme compositions and methods employing them 42 2001
6,503,879 Alkaline detergent containing mixed organic and inorganic sequestrants resulting in improved soil removal 9 2001
6,632,291 Methods and compositions for cleaning, rinsing, and antimicrobial treatment of medical equipment 26 2001
7,153,820 Solid detergent composition and method for solidifying a detergent composition 2 2001
6,660,707 Stable solid block metal protecting warewashing detergent composition 17 2002
6,916,773 Non-surfactant solubilizing agent 0 2002
7,008,911 Non-surfactant solubilizing agent 0 2002
6,900,167 Solid composition with rheology modifier 8 2002
6,903,062 Rheology modifier concentrate 15 2002
6,835,706 Alkaline detergent containing mixed organic and inorganic sequestrants resulting in improved soil removal 7 2003
8,043,650 Treatment of animal carcasses 0 2003
6,767,881 Cleaning concentrate 9 2003
6,831,054 Stable solid block detergent composition 14 2003
7,135,448 Warewashing composition for use in automatic dishwashing machines, comprising a mixture of aluminum and zinc ions 12 2003
6,846,793 Cleaning concentrate 12 2003
7,279,455 Rinse aid composition and method of rising a substrate 7 2003
7,341,987 Binding agent for solid block functional material 2 2003
7,087,569 Stable solid block metal protecting warewashing detergent composition 11 2003
7,442,679 Binding agent for solidification matrix comprising MGDA 0 2004
7,196,044 Warewashing composition for use in automatic dishwashing machines, comprising a zinc ion and aluminum ion corrosion inhibitor 3 2004
7,094,746 Stable solid block detergent composition 11 2004
7,517,846 Solid, two part chemical concentrate 0 2005
7,196,045 Warewashing composition comprising a corrosion inhibitor with Al and Zn ions 1 2006
7,759,299 Warewashing composition for use in automatic dishwashing machines 1 2006
7,452,853 Warewashing composition comprising zinc and aluminum ions for use in automatic dishwashing machines 0 2006
7,547,421 Apparatus and method for making a peroxycarboxylic acid 3 2006
7,524,803 Warewashing composition for use in automatic dishwashing machines comprising an aluminum/zinc ion mixture 1 2007
7,893,012 Solidification matrix 4 2007
7,828,907 Detergent component for preventing precipitation of water hardness and providing soil removal properties 0 2007
7,521,412 Dimensionally stable solid rinse aid 3 2007
7,888,303 Solidification matrix 4 2008
7,598,218 Method of forming a binding agent for solidification matrix 0 2008
7,638,473 Warewashing composition for use in automatic dishwashing machines, and methods for manufacturing and using 1 2008
7,645,731 Use of aminocarboxylate functionalized catechols for cleaning applications 0 2009
 
ECOLAB USA INC. (15)
8,030,351 Treatment of animal carcasses 0 2007
8,198,228 Solidification matrix using an aminocarboxylate 0 2008
8,075,857 Apparatus and method for making a peroxycarboxylic acid 0 2008
7,883,584 Dimensionally stable solid rinse aid 0 2009
8,017,082 Apparatus and method for making a peroxycarboxylic acid 0 2009
8,389,463 Enhanced dispensing of solid compositions 0 2009
7,829,516 Warewashing composition comprising a Zn/Al corrosion inhibitor for use in automatic dishwashing machines 0 2009
8,399,393 Combination of soluble lithium salt and soluble aluminum or silicate salt as a glass etching inhibitor 0 2010
7,858,574 Method for using warewashing composition comprising AI and Ca or Mg IONS in automatic dishwashing machines 1 2010
8,138,138 Solidification matrix using a polycarboxylic acid polymer 0 2010
8,338,352 Solidification matrix 0 2011
8,389,464 Solidification matrix using a polycarboxylic acid polymer 0 2012
8,324,147 Fast drying and fast draining solid rinse aid consisting essentially of a quaternary non-ionic surfactant mixture 0 2012
8,383,570 Enhanced melting point rinse aid solid compositions with synergistic preservative 0 2012
8,367,600 Dimensionally stable solid rinse aid 0 2012
 
COOPER INDUSTRIES, LLC (10)
6,037,537 Vegetable oil based dielectric coolant 19 1996
6,485,659 Electrical apparatus with dielectric fluid blend of polyalphaolefins and polyol esters or triglycerides 6 1998
6,184,459 Vegetable oil based dielectric coolant 12 1999
6,398,986 Food grade vegetable oil based dielectric fluid and methods of using same 13 1999
6,352,655 Vegetable oil based dielectric fluid 8 1999
6,613,250 Vegetable oil based dielectric fluid and methods of using same 8 2002
6,726,857 Dielectric fluid having defined chemical composition for use in electrical apparatus 9 2002
6,905,638 Vegetable oil based dielectric fluid and methods of using same 5 2003
7,651,641 Vegetable oil based dielectric fluid and methods of using same 5 2004
7,871,546 Vegetable oil based dielectric coolant 0 2009
 
NIPPON PETROCHEMICALS COMPANY, LIMITED (3)
5,113,029 Electric insulating oil composition 1 1987
5,017,733 Electrical insulating oil composition 18 1987
4,822,934 1-(3-Vinylphenyl)-1-phenylhydrocarbons and method for producing the same 2 1988
 
INRANGE SYSTEMS, INC. (2)
6,234,343 Automated portable medication radial dispensing apparatus and method 28 1999
7,451,876 Universal medication carrier 8 2004
 
ABB INC. (1)
6,280,659 Vegetable seed oil insulating fluid 27 1997
 
COOPER INDUSTRIES, INC. (1)
5,766,517 Dielectric fluid for use in power distribution equipment 46 1995
 
MURATA MANUFACTURING CO., LTD. (1)
5,168,433 Electric double-layer capacitor 7 1991
 
NOKIA CORPORATION (1)
6,583,094 Stable solid block detergent composition 15 2000
 
Other [Check patent profile for assignment information] (3)
4,879,628 High voltage measurement capacitor 2 1988
4,931,843 High voltage measurement capacitor 4 1989
8,450,264 Fast drying and fast draining rinse aid 0 2012