U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Famous Patents

In 1879, Auguste Bartholdi received design patent number 11,023 titled "Design for a Statue". It was for the Statue of Liberty.

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 556/6 - Nitrogen containing preservative or stabilizer


Subclass of Class 556 - Organic compounds -- part of the class 532-570 series
Definition: Products wherein the preserving or stabilizing agent contains
No. of patents: 20
Last issue date: 03/23/2010


NumberTitleIssue Date
7683194Method for the production of salts of weakly coordinating anions, salts thereof and use thereof
The invention relates to a method for the production of salts of weakly coordinating anions of the type according to the following formula (1), (2) or (3): M[F—X(OR F)m]z (1), M[(FRO)mX—F—X(ORF)m
03/23/2010
6902891Process for labeling a nucleic acid
A process of fragmenting and labeling a synthetic or natural nucleic acid, comprising the steps of providing a mixture containing a nucleic acid, a labeling agent containing a detectable label, and at least one multivalent metal cation in a substantially aqueous sol...
06/07/2005
6809210Method of solvating a metal in an aromatic organic liquid
A method of solvating metal ions in an aromatic organic liquid. The method includes adding an ammonium salt having an organic acid reagent to the aromatic organic liquid. The organic acid reagent comprises a carboxylate having eight (8) or less carbon atoms. Thereaf...
10/26/2004
6689459Clear cathodic electrocoating compositions
An improved aqueous cathodic electrocoating composition having a binder of an epoxy-amine adduct which is an epoxy resin that has been reacted with an amine, a blocked polyisocyanate crosslinking agent and an organic or inorganic acid as the neutralizing ...
02/10/2004
6500957Stable dihydridoalkyl platinum(IV) complex, methods of producing same and utilizing same
A platinum complex is described to include a platinum(IV) metal center so positioned and oriented in the complex so as to complex in cis orientations with two hydride groups and with an alkyl group....
12/31/2002
6376179Process for labeling a ribonucleic acid, and labeled RNA fragments which are obtained thereby
The present invention relates to a process for labeling a synthetic or natural ribonucleic acid (RNA). It also relates to RNA fragments, which have been labeled by fragmenting the RNA to free a terminal phosphate of each fragment for further reaction, and...
04/23/2002
6352953Catalyst containing novel transition metal compound for polymerization of olefins
Disclosed is a novel transition metal composition of a metaracycle structure represented by the formula ##STR1## wherein M1 is an element of Group IVB in the Periodic Table, M2 is an element of Group IIIA in the Periodic Table, R
03/05/2002
5756787Process for the stabilization of organotin halides by lactams and/or lactones and metal alcoholates and/or semimetal alcoholates and a glass coating formulation for glass or ceramic surfaces
Stabilization of alkyltin compounds that are liquid at room temperature, especially alkyltin trihalides, is achieved by addition of 0.1 to 10 wt. % of one or more compounds that are soluble in the alkyltin compounds and that are reactive with water....
05/26/1998
5684149Metal complexes for promoting catalytic cleavage of RNA by transesterification
The present invention provides the first examples of metal complexes that show catalytic behavior in RNA transesterification under physiological relevant conditions i.e., 37° C. and neutral pH. The metal complexes are catalytically active and kinetically...
11/04/1997
5652191Palladium catalyst systems for selective hydrogenation of dienes
A catalyst precursor is provided that is useful in the selective hydrogenation of olefinic unsaturation in polymers or copolymers. The precursor comprises a palladium salt that is complexed with a complexing agent selected from the gronp consisting of org...
07/29/1997
5202470Hydrazinium sulphosalicylate
The invention provides a compound of the formula [NH2 NH2 ]a [C6 H3 (COOH) (SO3 H) (OH)]b wherein a is 1 and b is from 1 to 2. The compound is useful for stabilizing tin (II) compounds against ...
04/13/1993
4861500Delayed crosslinker composition containing organic titanium complexes and hydroxycarboxylic acids
A crosslinker composition that can produce delayed crosslinking of an aqueous solution of a crosslinkable organic polymer. The composition comprises an organic titanium complex. The composition further contains an organic hydroxycarboxylic acid, preferabl...
08/29/1989
4780223Stabilized fracture fluid and crosslinker therefor
Various organometallic crosslinkers containing titanium or zirconium atoms in the +4 oxidation (valence) state have been used to crosslink solvatable polysaccharides (e.g., hydroxypropyl guar) in aqueous media. The crosslinked gels are useful as fracturin...
10/25/1988
4686052Stabilized fracture fluid and crosslinker therefor
Various organometallic crosslinkers containing titanium or zirconium atoms in the +4 oxidation (valence) state have been used to crosslink solvatable polysaccharides (e.g., hydroxypropyl guar) in aqueous media. The crosslinked gels are useful as fracturin...
08/11/1987
4644073Permeability contrast correction employing a sulfate-free propionate-sequestered chromium (III) solution
A sulfate-free clear green solution of chromium(III) propionate is prepared by mixing aqueous propionic acid containing up to 55 weight percent propionic acid with a chromium(VI) oxidant, such as a dichromate or chromate, and a sulfur-containing reductant...
02/17/1987
4636572Permeability contrast correction employing propionate-sequestered chromium(III) prepared by nitrite/dichromate redox
A process for preparing clear green chromium(III) propionate solutions which comprises admixing such as propionic acid with water, a chromium(VI) source such as dichromate, adding thereto a nitrite, such as sodium nitrite, to reduce the chromium(VI) to ch...
01/13/1987
4419339Formulation and method of making cationic lipophilic complexes
A method for the preparation of a technetium-99m complex having the formula which comprises adding technetium-99m to a complex having the formula and heating the mixture in the presence of a source of anion X.crclbar., wherein each L is the same or diffe...
12/06/1983
4399070Stable salt-free partially chelated metal compositions and method of preparation
Partially chelated solutions of zinc have been prepared by employing ammonium salts of EDTA together with excess ammonia and dissolving therein an oxide or hydroxide of zinc....
08/16/1983
4315846Metal salt of N-substituted alkylenebisdithiocarbamic acid
This application relates to novel metal salts of N-substituted alkylenebisdithiocarbamic acids and their use as agricultural fungicides....
02/16/1982
4021536Magnesium-zirconium complexes useful as antiperspirants
Astringent compositions useful as antiperspirants are provided by forming a complex of a magnesium salt and an astringent zirconium compound, particularly zirconium oxy and hydroxy salts, such that the weight ratio of the zirconium content to the magnesiu...
05/03/1977
 
Sign InRegister
Username  
Password   
forgot password?