Featured patents

N-Acylation of Amines
US 08865920 B2, Oct. 21, 2014, Nitrogen attached directly or indirectly to the lactone ring by acyclic nonionic bonding, Michael Hayes et al. / Novus International, Inc. (St. Charles, US)
A process for preparing a compound comprising Formula (IV), the process…

Synergistic Anticoagulant Composition
US 08765982 B2, July 1, 2014, Additional -C(=X)- or other sulfur attached indirectly to the hetero ring, David E. Lewis et al. / Marshfield Clinic Health System, Inc. (Marshfield, US)
A compound comprising a structure according to formula I or formula II:…

Process for the Preparation of Darunavir
US 08703980 B2, April 22, 2014, Plural ring oxygens in the bicyclo ring system, Aravind Kumar Katukuri et al.
A process for the preparation of amorphous Darunavir containing less than 0.1%…

Lipase Activity Inhibitors Containing High-Molecular Weight Polyphenol Fractions, Tea Extracts, and Processes for Producing the Same
US 08680301 B2, March 25, 2014, Chalcogen bonded directly to the hetero ring, Keiichi Abe et al. / Suntory Holdings Limited (Osaka-shi, Osaka, JP)
A method of producing a composition comprising:…

Preparation of Aminomethyl Furans and Alkoxymethyl Furan Derivatives From Carbohydrates
US 08669383 B2, March 11, 2014, Nitrogen attached indirectly to the hetero ring by nonionic bonding, Stephen Howard et al. / Archer Daniels Midland Company (Decatur, US)
A method of making an alkyl substituted amino furan compound of a formula…

Orthoester Derivatives of Crown Ethers as Carriers for Pharmaceutical and Diagnostic Compositions
US 08624044 B2, Jan. 7, 2014, Three or more ring oxygens in the hetero ring, Sylvie Tchertchian et al. / Arisgen SA (Plan-les-Ouates, CH)
The crown ether of any one of the preceding claims, wherein said crown ether…

Solvent Addition and Removal in the Hydrogenation of Catmint Oil
US 08558015 B2, Oct. 15, 2013, Bicyclo ring system having the lactone ring as one of the cyclos, Leo Ernest Manzer et al. / E I du Pont de Nemours and Company (Wilmington, US)
A process for preparing hydrogenated catmint oil comprising:…

Process for Producing Vinylene Carbonate
US 08530676 B2, Sept. 10, 2013, The hetero ring is five-membered, Marielouise Schneider et al. / SALTIGO GmbH (Langenfeld, DE)
Process for the production of vinylene carbonate comprising eliminating hydrogen…

Active Polymeric Filters
US 08524919 B2, Sept. 3, 2013, Oxygen containing hetero ring, Kraig Anderson et al. / Empire Technology Development LLC (Wilmington, US)
A polymer comprising at least one pendant dioxirane moiety represented by Formula…

Epoxidation Reactions and Operating Conditions Thereof
US 08513444 B2, Aug. 20, 2013, Additional heavy metal containing material utilized, Albert C. Liu et al.
A method of producing ethylene oxide comprising:…

Patentorg has 431 documents under Carbon Compounds: Chalcogen or Nitrogen Are the Only Ring Hetero Atoms Patents.

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