Patents by Inventor Ramamohan Rao

Ramamohan Rao 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).

  • Publication number: 20230346625
    Abstract: A self-retaining surgical retractor assembly for use with a patient in a lithotomy position on a surgical table; the retractor assembly comprising a base plate positioned underneath the buttocks of a patient and base plate is held between the patient and a surface of the operating table or examination bed supporting the patient such that the retractor assembly is self-holding; self-stabilizing, and is able to maintain a fixed position relative to patient during use in an examination position while not being attached to the surgical table.
    Type: Application
    Filed: May 1, 2023
    Publication date: November 2, 2023
    Inventor: Ramamohan Rao
  • Patent number: 11034325
    Abstract: The head stabilizer includes a suspender having a pair of bracket connectors that couple to a vehicle seat and a downwardly extending vertical positioning rod having a size and shape for select slide-on reception of a lateral support unit. The lateral support unit may be secured in a desired vertical position along the rod through locking engagement with one or more notches therein. The lateral support unit includes a pair of head pads that can be drawn in to provide side-to-side support for the user's head and a headband may couple between the pair of head pads and across the forehead to provide pitch support for the head.
    Type: Grant
    Filed: August 19, 2019
    Date of Patent: June 15, 2021
    Inventor: Ramamohan Rao
  • Publication number: 20200055483
    Abstract: The head stabilizer includes a suspender having a pair of bracket connectors that couple to a vehicle seat and a downwardly extending vertical positioning rod having a size and shape for select slide-on reception of a lateral support unit. The lateral support unit may be secured in a desired vertical position along the rod through locking engagement with one or more notches therein. The lateral support unit includes a pair of head pads that can be drawn in to provide side-to-side support for the user's head and a headband may couple between the pair of head pads and across the forehead to provide pitch support for the head.
    Type: Application
    Filed: August 19, 2019
    Publication date: February 20, 2020
    Inventor: Ramamohan Rao
  • Publication number: 20180155290
    Abstract: The present invention relates to process for preparation of Aripiprazole with reduced particle size having dehydro impurity less than 0.1%.
    Type: Application
    Filed: December 14, 2015
    Publication date: June 7, 2018
    Inventor: Davuluri Ramamohan RAO
  • Publication number: 20160326118
    Abstract: A novel process the for preparation of Indacaterol or its pharmaceutically acceptable salts and novel intermediates employed in the preparation thereof that is economically significant for large scale.
    Type: Application
    Filed: December 27, 2014
    Publication date: November 10, 2016
    Inventor: Ramamohan Rao DAVULURI
  • Patent number: 9346744
    Abstract: An improved, cost effective process for the preparation of Lacosamide is disclosed. A novel intermediate of formula (IV) and a process for preparation of the novel intermediate is also disclosed. wherein, X is halogen.
    Type: Grant
    Filed: March 9, 2015
    Date of Patent: May 24, 2016
    Inventor: Davuluri Ramamohan Rao
  • Patent number: 9296705
    Abstract: A process for the purification of Bosentan sodium and a novel crystalline form of substantially pure Bosentan sodium to disclosed in this invention.
    Type: Grant
    Filed: August 29, 2013
    Date of Patent: March 29, 2016
    Assignee: Davuluri Ramamohan Rao
    Inventor: Davuluri Ramamohan Rao
  • Publication number: 20160060210
    Abstract: An improved, cost effective process for the preparation of Lacosamide is disclosed. A novel intermediate of formula (IV) and a process for preparation of the novel intermediate is also disclosed. wherein, X is halogen.
    Type: Application
    Filed: March 9, 2015
    Publication date: March 3, 2016
    Inventor: Davuluri Ramamohan Rao
  • Patent number: 9199916
    Abstract: The invention is a novel process for the preparation of lacosamide by employing novel intermediates of formula III and IV:
    Type: Grant
    Filed: November 8, 2012
    Date of Patent: December 1, 2015
    Assignee: RAMAMOHAN RAO DAVULURI
    Inventors: Ramamohan Rao Davuluri, Guruswamy Batthini, Swetha Mustyala, Sudheer Kallepalli, Praveen Kumar Neela, Ravi Ponnaiah
  • Patent number: 9199933
    Abstract: Provided are novel processes for the preparation of Saxagliptin and novel intermediates employed in the process for preparing Saxagliptin.
    Type: Grant
    Filed: April 22, 2013
    Date of Patent: December 1, 2015
    Inventor: Ramamohan Rao Davuluri
  • Patent number: 9120876
    Abstract: A novel process for the preparation of 6-perdeoxy-6-per-halo Gamma cyclodextrin which is a useful intermediate in the synthesis of Sugammadex is disclosed in the invention. The process involves reacting Gamma cyclodextrin with phosphorous halide in the presence of organic solvent.
    Type: Grant
    Filed: August 23, 2011
    Date of Patent: September 1, 2015
    Inventors: Ramamohan Rao Davuluri, Ravi Ponnaiah, Ravi Kanth Sribhashyam, Nandkumar Mecherili Valsan, Naresh Dongari, Prasad Chlnv, Guruswamy Batthini
  • Publication number: 20150232430
    Abstract: A process for the purification of Bosentan sodium and a novel crystalline form of substantially pure Bosentan sodium to disclosed in this invention.
    Type: Application
    Filed: August 29, 2013
    Publication date: August 20, 2015
    Inventor: Davuluri Ramamohan RAO
  • Publication number: 20150112084
    Abstract: Provided are novel processes for the preparation of Saxagliptin and novel intermediates employed in the process for preparing Saxagliptin.
    Type: Application
    Filed: April 22, 2013
    Publication date: April 23, 2015
    Inventor: RAMAMOHAN RAO DAVULURI
  • Patent number: 8940749
    Abstract: An improved process for the synthesis of 3-[2-[4-((6-fluoro-1,2-benzisoxazol-3-yl)-1-piperidinyl]-6,7,8,9-tetrahydro-9-hydroxy-2-methyl-4H-pyrido[1,2-a]-pyrimidin-4-one (Paliperidone) and Paliperidone Palmitate through a novel intermediate (2-Chloroethyl)-6,7,8,9-tetrahydro-2-methyl-9-hydroxy-4H-pyrido [1,2-a]pyrimidine-4-one Palmitate ester.
    Type: Grant
    Filed: May 30, 2012
    Date of Patent: January 27, 2015
    Inventors: Ramamohan Rao Davuluri, Ravi Ponnaiah, Praveen Kumar Neela, Guruswamy Batthini, Telagareddy Venkata Narasimharao, Kosireddy Ravanababu, Kallepally Sudheer
  • Patent number: 8907083
    Abstract: The invention provides a novel process for the synthesis of 2-(2-hydroxyphenyl)-benz[1,3]oxazin-4-one, the process comprising of reacting the salicylic acid with salicylamide in the presence of p-toluenesulfonyl chloride, base and solvent. The use of 2-(2-hydroxyphenyl)-benz[1,3]oxazin-4-one in the preparation of Deferasirox is also disclosed in the invention.
    Type: Grant
    Filed: August 23, 2011
    Date of Patent: December 9, 2014
    Assignee: Ramamohan Rao Davuluri
    Inventors: Ramamohan Rao Davuluri, Ravi Ponnaiah, Guruswamy Batthni, Chandra Murthy V. R. Medida, Santhosh Dummu
  • Publication number: 20140323738
    Abstract: The invention is a novel process for the preparation of lacosamide by employing novel intermediates of formula III and IV:
    Type: Application
    Filed: November 8, 2012
    Publication date: October 30, 2014
    Inventor: RAMAMOHAN RAO DAVULURI
  • Patent number: 8871945
    Abstract: The invention relates to a novel, industrially viable, cost effective process for the preparation of 1-(2,6-difluorobenzyl)-1H-1,2,3-triazole-4-carboxamide commonly known as Rufinamide and intermediates thereof.
    Type: Grant
    Filed: August 23, 2011
    Date of Patent: October 28, 2014
    Inventors: Ramamohan Rao Davuluri, Ravi Ponnaiah, Sanjay Kumar Dehury, Selvaraju K., Deepthi VPSS, Dhanunjaya Naidu
  • Publication number: 20140221641
    Abstract: A novel process for the preparation of 6-perdeoxy-6-per-halo Gamma cyclodextrin which is a useful intermediate in the synthesis of Suggamadex is disclosed in the invention. The process involves by reacting Gamma cyclodextrin with phosphorous halide in presence of organic solvent.
    Type: Application
    Filed: August 23, 2011
    Publication date: August 7, 2014
    Inventors: Ramamohan Rao Davuluri, Ravi Ponnaiah, Ravi Kanth Sribhashyam, Nandkumar Mecherili Valsan, Naresh Dongari, Prasad Chlnv, Guruswamy Batthini
  • Publication number: 20140073787
    Abstract: An improved process for the synthesis of 3-[2-[4-((6-fluoro-1,2-benzisoxazol-3-yl)-1-piperidinyl]-6,7,8,9-tetrahydro-9-hydroxy-2-methyl-4H-pyrido[1,2-a]-pyrimidin-4-one (Paliperidone) and Paliperidone Palmitate through a novel intermediate (2-Chloroethyl)-6,7,8,9-tetrahydro-2-methyl-9-hydroxy-4H-pyrido [1,2-a]pyrimidine-4-one Palmitate ester.
    Type: Application
    Filed: May 30, 2012
    Publication date: March 13, 2014
    Inventors: Ramamohan Rao Davuluri, Ravi Ponnaiah, Praveen Kumar Neela, Guruswamy Batthini, Telagareddy Venkata Narasimharao, Kosireddy Ravanababu, Kallepally Sudheer
  • Publication number: 20130338356
    Abstract: The invention provides a novel process for the synthesis of 2-(2-hydroxyphenyl)-benz[1,3]oxazin-4-one, the process comprising of reacting the salicylic acid with salicylamide in the presence of p-toluenesulfonyl chloride, base and solvent. The use of 2-(2-hydroxyphenyl)-benz[1,3]oxazin-4-one in the preparation of Deferasirox is also disclosed in the invention.
    Type: Application
    Filed: August 23, 2011
    Publication date: December 19, 2013
    Inventors: Ramamohan Rao Davuluri, Ravi Ponnaiah, Guruswamy Batthni, Chandra Murthy V. R. Medida, Santhosh Dummu