Patents by Inventor Deepak Venkatraman

Deepak Venkatraman 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: 10807344
    Abstract: Thermal insulation structures include a polymer foam layer adhered to a multi-layer sheet having a non-cellular layer of a heat-resistant thermoplastic and a second non-cellular layer of a polylactide resin. The polylactide resin is a surprisingly good barrier to the diffusion of atmospheric gases into the foam layer and of blowing agents out of the foam layer. Accordingly, the diffusion of atmospheric gases and blowing agents is retarded substantially. This greatly reduces the loss of thermal insulation capacity of the structure due to the replacement of the blowing agent with atmospheric gases. The multi-layer sheet exhibits excellent thermal stability, even when the polylactide in the polylactide layer is highly amorphous.
    Type: Grant
    Filed: April 24, 2017
    Date of Patent: October 20, 2020
    Assignee: NatureWorks LLC
    Inventors: Nemat Hossieny, Osei A. Owusu, Manuel A. W. Natal, Deepak Venkatraman
  • Publication number: 20190126591
    Abstract: Thermal insulation structures include a polymer foam layer adhered to a multi-layer sheet having a non-cellular layer of a heat-resistant thermoplastic and a second non-cellular layer of a polylactide resin. The polylactide resin is a surprisingly good barrier to the diffusion of atmospheric gases into the foam layer and of blowing agents out of the foam layer. Accordingly, the diffusion of atmospheric gases and blowing agents is retarded substantially. This greatly reduces the loss of thermal insulation capacity of the structure due to the replacement of the blowing agent with atmospheric gases. The multi- layer sheet exhibits excellent thermal stability, even when the polylactide in the polylactide layer is highly amorphous.
    Type: Application
    Filed: April 24, 2017
    Publication date: May 2, 2019
    Inventors: Nemat Hossieny, Osei A. Owusu, Manuel A. W. Natal, Deepak Venkatraman
  • Publication number: 20120253038
    Abstract: Efficient processes for the synthesis of pharmaceutically useful compounds such as (1-[4-(2-azepan-1-yl-ethoxy)-benzyl]-2-(4-hydroxy-phenyl)-3-methyl-1H-indol-5-ol acetic acid commonly known as bazedoxifene acetate (Formula IX) using cyanomethoxybenzyl halides of Formula III, where X=Halogens e.g., Cl, F, Br, I; G=Any electron donating or electron withdrawing substituent.
    Type: Application
    Filed: April 9, 2010
    Publication date: October 4, 2012
    Applicant: SANDOZ AG
    Inventors: Shreerang Joshi, Sachin Bhuta, Sanjay Talukdar, Sudhir Sawant, Deepak Venkatraman