Patents by Inventor Ravishanker Kovi

Ravishanker Kovi 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: 20240010644
    Abstract: The present invention relates to an improved process for the preparation of Isavuconazonium sulfate. The present invention also provides a process for the preparation of key starting materials used for the preparation of Isavuconazonium sulfate.
    Type: Application
    Filed: July 6, 2023
    Publication date: January 11, 2024
    Inventors: Ravishanker Kovi, Jayaraman Kannappan, Aditya N. Khanvilkar, Jatin Kahar, Suraj Chauhan
  • Patent number: 11857677
    Abstract: The present application provides stable ready-to-use injectable formulations of melphalan, methods for preparing storage-stable, ready-to-use injectable formulations that include melphalan, which are easy to administer without need of any reconstitution step and has a desirable solubility, stability, and safety profile. In other embodiments, provided are storage-stable, ready-to-use, injectable liquid parenteral formulations that include melphalan and other pharmaceutically acceptable excipients.
    Type: Grant
    Filed: December 17, 2020
    Date of Patent: January 2, 2024
    Assignee: RK PHARMA INC.
    Inventors: Ravishanker Kovi, Jayaraman Kannappan, Thupalli Ajeykumar Reddy, Vamshi Yekkanti, Raghu Kasu
  • Patent number: 11654151
    Abstract: Liquid parenteral formulations are provided that include tigecycline and at least one or more pharmaceutically acceptable excipient or adjuvant, where the formulation is ready to use without additional steps for reconstitution at the time of administration.
    Type: Grant
    Filed: October 21, 2020
    Date of Patent: May 23, 2023
    Assignee: RK PHARMA INC.
    Inventors: Ravishanker Kovi, Jayaraman Kannappan, Sanjaysinh Fatesinh Thakor, Rahul Dixit
  • Publication number: 20230054302
    Abstract: The invention relates to an improved composition of ferric maltol or ferric trimaltol for the treatment of iron deficiency, wherein the composition comprises the active ferric maltol or ferric trimaltol lower than 60% of the total composition weight. The compositions further can be a capsule or tablet or any other pharmaceutical solid dosage form, preferably a capsule in a hard gelatin in a size of 0 or 1, for oral administration.
    Type: Application
    Filed: July 27, 2022
    Publication date: February 23, 2023
    Applicant: RK PHARMA INC.
    Inventors: Ravishanker Kovi, Prasad Vure, Raghu Rami Reddy Kasu, Thupalli Ajey Kumar Reddy, Yekkanti Vamshi, Jayraman Kannappan, Hardik Vyas
  • Patent number: 11447513
    Abstract: The present application provides processes for the purification of ferric carboxymaltose, the process includes the steps of dissolving crude ferric carboxymaltose in a first solvent; charging the ferric carboxymaltose solution in a reaction vessel with a second solvent and precipitating therefrom a ferric carboxymaltose precipitate; and isolating pure ferric carboxymaltose from the ferric carboxymaltose precipitate.
    Type: Grant
    Filed: February 11, 2021
    Date of Patent: September 20, 2022
    Assignee: RK PHARMA INC.
    Inventors: Ravishanker Kovi, Jayaraman Kannapan, Hemant Mande, Rajesh Patel, Ritesh H Panchal, Varun L Zambare
  • Patent number: 11447499
    Abstract: The present application provides improved processes for the synthesis of eribulin intermediate, which generally comprise the steps of: a) De-protecting the eribulin-enone (compound 1) in tetrahydrofuran by using TBAF solution, buffered with imidazole HCl in the presence of molecular sieve and sodium sulphate to get an insitu mixture of eribulin-dione diastereomer at C12 carbon (compound 2). Then ketalization may be performed of eribulin-dione insitu intermediate containing mixture of diastereomer at C12 carbon (compound 2) with PPTS in dichloromethane to yield eribulin-diol (compound 3).
    Type: Grant
    Filed: June 11, 2020
    Date of Patent: September 20, 2022
    Assignee: RK PHARMA INC.
    Inventors: Ravishanker Kovi, Jayaraman Kannappan, Shivnath Sahebrao Patil
  • Patent number: 11332495
    Abstract: Methods for preparing degarelix acetate are provided that include the steps of providing a suitable resin; deprotecting the resin with a diethylenetriamine solution; reacting sequentially the deprotected resin with different Fmoc protected amino acids; deprotecting the amino acid in each sequence with a diethylenetriamine solution in a stepwise fashion to yield a degarelix crude compound; and purifying the degarelix crude compound to yield pharmaceutically acceptable degarelix acetate. Methods of preparing degarelix acetate-mannitol premix and the resulting degarelix acetate-mannitol premix are also provided.
    Type: Grant
    Filed: September 15, 2020
    Date of Patent: May 17, 2022
    Assignee: RK PHARMA SOLUTIONS LLC
    Inventors: Ravishanker Kovi, Jayaraman Kannappan, Sai Saisuryanarayana Donthukurthi, Shivam Saroj, Piyush Fadadu, Srikrishna Apar, Sandeep Aher, Veerabhadra Rao Bobbili
  • Patent number: 11324771
    Abstract: A process for the preparation of hydroxocobalamin hydrochloride. More particularly the present application relates to improved process for the preparation of Hydroxocobalamin hydrochloride. In addition the present application also relates to process for the preparation of novel amorphous form. This application particularly relates to a process for the industrial manufacture of hydroxocobalamin hydrochloride from cyanocobalamin. The present application also relates to the improvement in yield with better purity of Hydroxocobalamin hydrochloride.
    Type: Grant
    Filed: June 24, 2020
    Date of Patent: May 10, 2022
    Assignee: RK Pharma Solutions LLC
    Inventors: Ravishanker Kovi, Jayaraman Kannappan, Shivnath Patil, Chowdari Bhushaiah Talluri, Aditya Khanvilkar, Govind Ahirrao
  • Patent number: 11260065
    Abstract: A stable, ready-to-use injectable solution including thiotepa and one or more pharmaceutically acceptable solvents, co-solvents, and/or solubilizing agents. Formulations retain at least 90% and as high as 99% of the purity of thiotepa as measured by HPLC after storage at 25° C./60% RH for a period of 7 days. Certain formulations retain at least 99% of the purity of thiotepa as measured by HPLC after storage for at least six months at 2-8° C.
    Type: Grant
    Filed: November 21, 2019
    Date of Patent: March 1, 2022
    Assignee: RK Pharma Solutions LLC
    Inventors: Ravishanker Kovi, George Roby Thomas, Nirmal Chaitanya Indravadanbhai, Patel Mitesh Manubhai, Thupalli Ajeykumar Reddy, Jayaraman Kannappan
  • Publication number: 20220049102
    Abstract: The present application provides method for producing methylene blue that includes the steps of providing a reaction mixture having one or more methylene blue intermediates; precipitating metal from the reaction mixture; and producing therefrom crude methylene blue. The crude may further be purified, resulting in methylene compounds having low impurities, preferably having a purity greater than about 97%, having Azure B impurity no greater than 2.5%, and/or a total metal content no greater than 77 ppm. Formulations containing such compounds are also provided.
    Type: Application
    Filed: September 17, 2020
    Publication date: February 17, 2022
    Inventors: Ravishanker Kovi, Jayaraman Kannappan, Hemant Mande, Dusanapudi Naga Venkata Raghavulu
  • Publication number: 20220040100
    Abstract: The present application provides method for formulating and corresponding liquid parenteral formulations that include a desired amount of acyclovir sodium added to a vessel with a pharmaceutically acceptable infusion diluent, which are stirred to provide a shelf stable injectable solution.
    Type: Application
    Filed: June 22, 2021
    Publication date: February 10, 2022
    Inventors: Ravishanker Kovi, Raghu Kasu, Thupalli Ajeykumar Reddy, Vamshi Yekkanti
  • Publication number: 20220040092
    Abstract: The present application provides method for formulating and corresponding a ready-to-use liquid injectable parenteral pharmaceutical composition, comprising Micafungin sodium and a first excipient and/or pharmaceutically acceptable second excipient.
    Type: Application
    Filed: June 23, 2021
    Publication date: February 10, 2022
    Inventors: Ravishanker Kovi, Raghu Kasu, Jayaraman Kannappan, AJEY REDDY, SANJAY THAKOR, KAPISH KAPOOR
  • Publication number: 20210361644
    Abstract: Ready-to-use liquid parenteral formulations are provided that include trabectedin, at least one of a pharmaceutically acceptable solvent, and at least one pharmaceutically acceptable excipient or adjuvant.
    Type: Application
    Filed: August 5, 2021
    Publication date: November 25, 2021
    Inventors: Ravishanker Kovi, Jayaraman Kannappan, Swaminathan Ramamurthy, Baskaran Ayyanar, Ramesh Pawar, Gaurav Yadav, Ronak Patel, Dixit Panchal, Rhagu Kasu, Bhavesh Panchal
  • Publication number: 20210332073
    Abstract: Method are provided for obtaining ferric citrate that includes the step(s) of reacting ferric chloride with a suitable base to obtain ferric hydroxide; reacting the ferric hydroxide with citric acid to obtain ferric citrate; and processing the ferric citrate to obtain ferric citrate. The resulting ferric citrate has a specific surface area greater than 16 sq. m/g, but less than 20 sq. m/g.
    Type: Application
    Filed: September 28, 2020
    Publication date: October 28, 2021
    Inventors: Ravishanker Kovi, Jayaraman Kannappan, Shivnath Patil, Srikrishna Apar, Govind Ahirrao, Shrikant Wadajkar
  • Publication number: 20210277041
    Abstract: The present application provides processes for the purification of ferric carboxymaltose, the process includes the steps of dissolving crude ferric carboxymaltose in a first solvent; charging the ferric carboxymaltose solution in a reaction vessel with a second solvent and precipitating therefrom a ferric carboxymaltose precipitate; and isolating pure ferric carboxymaltose from the ferric carboxymaltose precipitate.
    Type: Application
    Filed: February 11, 2021
    Publication date: September 9, 2021
    Inventors: Ravishanker Kovi, Jayaraman Kannapan, Hemant Mande, Rajesh Patel, Ritesh H Panchal, Varun L Zambare
  • Patent number: 11111208
    Abstract: The present application provides methods for the synthesis of intermediates in the synthesis of Safinamide or a pharmaceutically acceptable salt thereof herein Safinamide Mesylate, that is substantially free of impurities.
    Type: Grant
    Filed: June 12, 2020
    Date of Patent: September 7, 2021
    Assignee: RK PHARMA SOLUTIONS LLC
    Inventors: Ravishanker Kovi, Jayaraman Kannappan, Rajesh A Patel, Daxeshkumar Prakashbhai Patel
  • Publication number: 20210252037
    Abstract: A process for the preparation of hydroxocobalamin hydrochloride. More particularly the present application relates to improved process for the preparation of Hydroxocobalamin hydrochloride. In addition the present application also relates to process for the preparation of novel amorphous form. This application particularly relates to a process for the industrial manufacture of hydroxocobalamin hydrochloride from cyanocobalamin. The present application also relates to the improvement in yield with better purity of Hydroxocobalamin hydrochloride.
    Type: Application
    Filed: June 24, 2020
    Publication date: August 19, 2021
    Inventors: Ravishanker Kovi, Jayaraman Kannappan, Shivnath Patil, Chowdari Bhushaiah Talluri, Aditya Khanvilkar, Govind Ahirrao
  • Publication number: 20210205336
    Abstract: Liquid parenteral formulations are provided that include tigecycline and at least one or more pharmaceutically acceptable excipient or adjuvant, where the formulation is ready to use without additional steps for reconstitution at the time of administration.
    Type: Application
    Filed: October 21, 2020
    Publication date: July 8, 2021
    Inventors: Ravishanker Kovi, Jayaraman Kannappan, Sanjaysinh Fatesinh Thakor, Rahul Dixit
  • Publication number: 20210205216
    Abstract: The present application provides stable ready-to-use injectable formulations of melphalan, methods for preparing storage-stable, ready-to-use injectable formulations that include melphalan, which are easy to administer without need of any reconstitution step and has a desirable solubility, stability, and safety profile. In other embodiments, provided are storage-stable, ready-to-use, injectable liquid parenteral formulations that include melphalan and other pharmaceutically acceptable excipients.
    Type: Application
    Filed: December 17, 2020
    Publication date: July 8, 2021
    Inventors: Ravishanker Kovi, Jayaraman Kannappan, Thupalli Ajeykumar Reddy, Vamshi Yekkanti, Raghu Kasu
  • Patent number: 11034714
    Abstract: Novel processes for making the N-pyrrazole substituted 2-adenosine derivative regadenoson and a novel polymorph thereof. The novel polymorph of regadenoson designated form H and drug substances and pharmaceutical compositions including the novel polymorph H are disclosed.
    Type: Grant
    Filed: August 28, 2019
    Date of Patent: June 15, 2021
    Inventors: Ravishanker Kovi, Jayaraman Kannapan, Piyush D. Fadadu, Ashish Naik