Patents by Inventor Himanshu Singh

Himanshu Singh has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • R-(-) / S-(+)-7-[3-N SUBSTITUTED AMINO-2 HYDROXYPROPOXY] FLAVONES
    Publication number: 20110077294
    Abstract: The present invention provides an optically active compound of general formula (I) and salts thereof: wherein R? is selected from a group consisting of t-butyl amine, n-butylamine, iso-butylamine, iso-propyl amine, 4-phenyl-piperazine-1-ylamine, 4-(2-methoxyphenyl)-piperazin-1-ylamine, and 3,4-dimethoxy phenethyl amine; wherein R1, R2 and R3 are selected from the group consisting of hydrogen, methyl or iso pentenyl; R4, R5 and R6 are selected from the group consisting of Oil, O-alkyl, O-benzyl, O-substituted phenyl or combination thereof.
    Type: Application
    Filed: August 2, 2007
    Publication date: March 31, 2011
    Inventors: Ram Pratap, Himanshu Singh, Alok Kumar Verma, Amar Bahadur Singh, Priti Priti Tiwari Tiwari, Mukesh Srivastava, Arvind Kumar Srivastava, Anil Kumar Dwivedi, Satyawan Singh, Pratima Pnahma Svivastva Srivastava, Shio Kumar Singh, Chandishwar Nath, Ram Raghubir