Patents by Inventor Girish Mahajan

Girish Mahajan 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).

  • Patent number: 11616184
    Abstract: The present disclosure is directed to materials, devices, and methods for resonant ambient thermal energy harvesting. Thermal energy can be harvested using thermoelectric resonators that capture and store ambient thermal fluctuations and convert the fluctuations to energy. The resonators can include non-linear heat transfer elements, such as thermal diodes, to enhance their performance. Incorporation of thermal diodes can allow for a dynamic rectification of temperature fluctuations into a single polarity temperature difference across a heat engine for power extraction, as compared to the dual polarity nature of the output voltage of linear thermal resonators, which typically necessitates electrical rectification to be routed to an entity for energy storage. In some embodiments, the thermal diode can be applied to transient energy harvesting to construct thermal diode bridges. Methods for constructing such devices, and using such devices, are also provided.
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: March 28, 2023
    Assignee: Massachusetts Institute of Technology
    Inventors: Michael S. Strano, Anton Lee Cottrill, Sayalee Girish Mahajan, Tianxiang Liu, Volodymyr B. Koman
  • Patent number: 11296271
    Abstract: The present disclosure is directed to materials, devices, and methods for resonant ambient thermal energy harvesting. Thermal energy can be harvested using thermoelectric resonators that capture and store ambient thermal fluctuations and convert the fluctuations to energy. The thermal resonators can include heat engines disposed between masses of varying sizes or diodes. The masses or diodes can be made of high and ultra-high effusivity materials to transfer thermal energy through the resonator and optimize power output. The masses or diodes of the resonator can be tuned to the dominant frequency of the temperature waveform to maximize the amount of energy being converted. The resonators can be added to existing structures to supply or generate power, and, in some embodiments, the structures themselves can be a mass of the thermal resonator. Methods for constructing and/or using such devices are also provided, as are methods for formulating ultra-high effusivity materials.
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: April 5, 2022
    Assignee: Massachusetts Institute of Technology
    Inventors: Michael S. Strano, Anton Lee Cottrill, Sayalee Girish Mahajan, Tianxiang Liu, Volodymyr B. Koman
  • Patent number: 10696688
    Abstract: The present invention relates to fused pyrimidines of formulae I and II wherein, R1, R2 are as herein described. The present invention particularly relates to isoform selective PI3K? inhibition and their medicinal use as anticancer agents.
    Type: Grant
    Filed: November 21, 2016
    Date of Patent: June 30, 2020
    Assignee: Council of Scientific & Industrial Research
    Inventors: Sandip Bibishan Bharate, Shashi Bhushan, Shabber Mohammed, Santosh Kumar Guru, Sonali Sandip Bharate, Vikas Kumar, Girish Mahajan, Mubashir Javed Mintoo, Dilip Manikrao Mondhe, Ram Vishwakarma
  • Publication number: 20200031845
    Abstract: The present invention relates to fused pyrimidines of formulae I and II wherein, R1, R2 are as herein described. The present invention particularly relates to isoform selective PI3K? inhibition and their medicinal use as anticancer agents.
    Type: Application
    Filed: November 21, 2016
    Publication date: January 30, 2020
    Inventors: Sandip Bibishan BHARATE, Shashi BHUSHAN, Shabber MOHAMMED, Santosh Kumar GURU, Sonali Sandip BHARATE, Vikas KUMAR, Girish MAHAJAN, Mubashir Javed MINTOO, Dilip Manikrao MONDHE, Ram VISHWAKARMA
  • Publication number: 20200028053
    Abstract: The present disclosure is directed to materials, devices, and methods for resonant ambient thermal energy harvesting. Thermal energy can be harvested using thermoelectric resonators that capture and store ambient thermal fluctuations and convert the fluctuations to energy. The resonators can include non-linear heat transfer elements, such as thermal diodes, to enhance their performance. Incorporation of thermal diodes can allow for a dynamic rectification of temperature fluctuations into a single polarity temperature difference across a heat engine for power extraction, as compared to the dual polarity nature of the output voltage of linear thermal resonators, which typically necessitates electrical rectification to be routed to an entity for energy storage. In some embodiments, the thermal diode can be applied to transient energy harvesting to construct thermal diode bridges. Methods for constructing such devices, and using such devices, are also provided.
    Type: Application
    Filed: August 31, 2018
    Publication date: January 23, 2020
    Inventors: Michael S. Strano, Anton Lee Cottrill, Sayalee Girish Mahajan, Tianxiang Liu, Volodymyr B. Koman
  • Publication number: 20190063412
    Abstract: The present disclosure is directed to materials, devices, and methods for resonant ambient thermal energy harvesting. Thermal energy can be harvested using thermoelectric resonators that capture and store ambient thermal fluctuations and convert the fluctuations to energy. The thermal resonators can include heat engines disposed between masses of varying sizes or diodes. The masses or diodes can be made of high and ultra-high effusivity materials to transfer thermal energy through the resonator and optimize power output. The masses or diodes of the resonator can be tuned to the dominant frequency of the temperature waveform to maximize the amount of energy being converted. The resonators can be added to existing structures to supply or generate power, and, in some embodiments, the structures themselves can be a mass of the thermal resonator. Methods for constructing and/or using such devices are also provided, as are methods for formulating ultra-high effusivity materials.
    Type: Application
    Filed: August 31, 2018
    Publication date: February 28, 2019
    Inventors: Michael S. Strano, Anton Lee Cottrill, Sayalee Girish Mahajan, Tianxiang Liu, Volodymyr B. Koman
  • Patent number: 9951040
    Abstract: The present invention describes heterocyclic compounds of general Formula 1 and their method of preparation thereof. The present invention describes general Formula 1 which inhibits phosphoinositide 3-kinase (PI3K) and can be used as the anticancer agents.
    Type: Grant
    Filed: November 17, 2015
    Date of Patent: April 24, 2018
    Assignee: Council of Scientific and Industrial Research
    Inventors: Thanusha Thatikonda, Suresh Kumar, Umed Singh, Priya Mahajan, Girish Mahajan, Amit Nargotra, Fayaz Malik, Dilip Manikrao Mondhe, Ram Asrey Vishwakarma, Parvinder Pal Singh
  • Patent number: 9868695
    Abstract: The present invention relates to the compounds of formula I wherein R is as herein described. The present invention particularly relates to synthesis and antiproliferative activity of 10-substituted colchicinoids. Compounds of the invention can be used for prevention or in the treatment of cancer disease.
    Type: Grant
    Filed: October 14, 2015
    Date of Patent: January 16, 2018
    Assignee: Council of Scientific & Industrial Research
    Inventors: Ram A. Vishwakarma, Sandip B. Bharate, Ajay Kumar, Baljinder Singh, Ashok Kumar, Shashi Bhushan, Abid Hamid, Prashant Joshi, Santosh K. Guru, Suresh Kumar, Aashiq Hussain, Asif K. Qazi, Sonali S. Bharate, Parduman Sharma, Ajit K. Saxena, Dilip M. Mondhe, Girish Mahajan, Zahoor Wani
  • Publication number: 20170342049
    Abstract: The present invention describes heterocyclic compounds of general Formula 1 and their method of preparation thereof. The present invention describes general Formula 1 which inhibits phosphoinositide 3-kinase (PI3K) and can be used as the anticancer agents.
    Type: Application
    Filed: November 17, 2015
    Publication date: November 30, 2017
    Inventors: Thanusha Thatikonda, Suresh Kumar, Umed Singh, Priya Mahajan, Girish Mahajan, Amit Nargotra, Fayaz Malik, Dilip Manikrao Mondhe, Ram Asrey Vishwakarma, Parvinder Pal Singh
  • Publication number: 20170226051
    Abstract: The present invention relates to the compounds of formula I wherein R is as herein described. The present invention particularly relates to synthesis and antiproliferative activity of 10-substituted colchicinoids. Compounds of the invention can be used for prevention or in the treatment of cancer disease.
    Type: Application
    Filed: October 14, 2015
    Publication date: August 10, 2017
    Inventors: Ram A. Vishwakarma, Sandip B. Bharate, Ajay Kumar, Baljinder Singh, Ashok Kumar, Shashi Bhushan, Abid Hamid, Prashant Joshi, Santosh K. Guru, Suresh Kumar, Aashiq Hussain, Asif K. Qazi, Sonali S. Bharate, Parduman Sharma, Ajit K. Saxena, Dilip M. Mondhe, Girish Mahajan, Zahoor Wani