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

Icon_funbox Did You Know...

...that the inventor of the electric motor was a blacksmith named Thomas Davenport? Described as "a brilliantly unsuccessful inventor", Davenport invented the first rotary electric motor. In 1836 he headed out -- on foot -- from his Vermont home to file a patent application at the Patent Office in Washington, D.C. By the time he got there, he had squandered away his money and couldn't afford the $30 filing fee so he turned around and went home. When he later mailed in his application with money he'd raised, the Patent office was destroyed in a fire. He did finally get credit for his invention on Feb. 5, 1837.

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.

 

Assignee: Cyprus Foote Mineral Company


Location: Malvern, PA
No. of patents: 7

NumberTitleIssue Date
5219550Production of low boron lithium carbonate from lithium-containing brine
The present invention relates to a novel process for producing, from a lithium-containing brine, a low boron lithium carbonate compound. This compound is particularly useful for conversion to a highly pure lithium chloride for the production of lithium me...
06/15/1993
5196138Preparation of mixed lithium amide reagents
A method for preparing a poorly soluble lithium amides in greater concentration by preparing a mixture of lithium amides wherein one of said lithium amides is soluble and another lithium amide is less soluble, and the reagent compositions formed thereby....
03/23/1993
5173209Stable lithium cycloalkylimides
A composition of at least one lithium cycloalkyl imide of the formula: ##STR1## wherein R and R' each represent a hydrogen or alkyl of 1 to 4 carbon atoms, and x and y are integers of 1 to 3....
12/22/1992
5149457Stable mixed lithium amide reagent compositions
A method for preparing lithium amides in a monocyclic aromatic solvent and the reagent compositions formed thereby....
09/22/1992
5068368Stabilized lithium acetylide and reactions therewith
A process for the preparation of ethynyl carbinols of the formula: ##STR1## wherein R" is hydrogen, a substituted or unsubstituted aliphatic or aromatic hydrocarbon, R'" is a substituted or unsubstituted aliphatic or aromatic hydrocarbon or R" and R'...
11/26/1991
4980136Production of lithium metal grade lithium chloride from lithium-containing brine
The present invention relates to a novel process for producing, from a lithium-containing brine, a substantially pure lithium chloride product. This product is particularly useful for the production of lithium metal by electrolysis....
12/25/1990
4867956Active oxygen-rich compound and preparative method
There is provided a novel active-oxygen rich lithium, boron, oxygen compound having the empirical formula and a method for making the same....
09/19/1989
 
Sign InRegister
Username  
Password   
forgot password?