Patents by Inventor Dennis Clegg

Dennis Clegg 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: 10246682
    Abstract: The production of high quality retinal pigmented epithelium (RPE) cells is necessary for research and potential therapeutic uses. Especially desirable are methods for the production of RPE cells using xeno-free culture conditions. Disclosed herein are novel methods for the production of RPE cells from pluripotent cells with high yields, including xeno-free production methods. Also provided are methods of efficiently isolating RPE cells from cultures containing heterogeneous cell types, allowing for substantially pure RPE cell cultures to be established. Additionally, novel methods for the cryopreservation of RPE cells are provided.
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: April 2, 2019
    Assignees: The Regents of the University of California, University of Southern California
    Inventors: Dennis Clegg, Sherry T. Hikita, Lincoln V. Johnson, Liane Miller, Marlene Tsie, Chelsea D. Presbrey, Lisa R. Conti, Michelle A. Maloney, David R. Hinton, Qirui Hu
  • Publication number: 20180087029
    Abstract: The production of high quality retinal pigmented epithelium (RPE) cells is necessary for research and potential therapeutic uses. Especially desirable are methods for the production of RPE cells using xeno-free culture conditions. Disclosed herein are novel methods for the production of RPE cells from pluripotent cells with high yields, including xeno-free production methods. Also provided are methods of efficiently isolating RPE cells from cultures containing heterogeneous cell types, allowing for substantially pure RPE cell cultures to be established. Additionally, novel methods for the cryopreservation of RPE cells are provided.
    Type: Application
    Filed: November 17, 2017
    Publication date: March 29, 2018
    Inventors: Dennis Clegg, Sherry Hikita, Lincoln Johnson, Liane Miller, Marlene Tsie, Chelsea Presbrey, Lisa Conti, Michelle Maloney, David Hinton, Qirui Hu
  • Patent number: 9850463
    Abstract: The production of high quality retinal pigmented epithelium (RPE) cells is necessary for research and potential therapeutic uses. Especially desirable are methods for the production of RPE cells using xeno-free culture conditions. Disclosed herein are novel methods for the production of RPE cells from pluripotent cells with high yields, including xeno-free production methods. Also provided are methods of efficiently isolating RPE cells from cultures containing heterogeneous cell types, allowing for substantially pure RPE cell cultures to be established. Additionally, novel methods for the cryopreservation of RPE cells are provided.
    Type: Grant
    Filed: January 31, 2013
    Date of Patent: December 26, 2017
    Assignee: The Regents of the University of California
    Inventors: Sherry Hikita, Dennis Clegg, Lincoln Johnson, Liane Miller, Marlene Tsie, Chelsea Presbrey, Lisa Conti, Michelle Maloney, David Hinton, Qirui Hu
  • Patent number: 9458428
    Abstract: The invention relates to the field of cell culture, specifically, the derivation of retinal pigmented epithelial cells from pluripotent cells. The invention comprises the use of various cell culture medium supplements, medium formulations, and methods of using such medium supplements and formulations, in order to effect the rapid differentiation of pluripotent cells into retinal pigmented epithelial cells with very high yields. The invention further includes cell culture media formulations for the efficient maintenance, propagation, and maturation of cultured retinal pigmented epithelial cells.
    Type: Grant
    Filed: June 5, 2013
    Date of Patent: October 4, 2016
    Assignee: The Regents of the University of California
    Inventors: Dennis Clegg, David Buchholz, Roxanne Croze, Britney Pennington, Peter Coffey, Lyndsay Leach
  • Publication number: 20150175964
    Abstract: The invention relates to the field of cell culture, specifically, the derivation of retinal pigmented epithelial cells from pluripotent cells. The invention comprises the use of various cell culture medium supplements, medium formulations, and methods of using such medium supplements and formulations, in order to effect the rapid differentiation of pluripotent cells into retinal pigmented epithelial cells with very high yields. The invention further includes cell culture media formulations for the efficient maintenance, propagation, and maturation of cultured retinal pigmented epithelial cells.
    Type: Application
    Filed: June 5, 2013
    Publication date: June 25, 2015
    Inventors: Dennis Clegg, David Buchholz, Roxanne Croze, Britney Pennington, Peter Coffey, Lyndsay Leach
  • Publication number: 20150147377
    Abstract: Disclosed herein are substrates for cell delivery to target tissues requiring treatment for various diseases that induce cell death, damage or loss of function. The substrates are configured to provide seeded cells, including stem cells, with a structural support that allows interconnection with and transmission of biological signals between the cells and the target tissue.
    Type: Application
    Filed: June 25, 2014
    Publication date: May 28, 2015
    Inventors: Mark Humayun, Ashish Ahuja, Yu-Chong Tai, David Hinton, Robert Grubbs, Dennis Clegg, Lincoln Vallance Johnson, Sherry T. Hikita
  • Patent number: 8808687
    Abstract: Disclosed herein are substrates for cell delivery to target tissues requiring treatment for various diseases that induce cell death, damage or loss of function. The substrates are configured to provide seeded cells, including stem cells, with a structural support that allows interconnection with and transmission of biological signals between the cells and the target tissue.
    Type: Grant
    Filed: July 12, 2011
    Date of Patent: August 19, 2014
    Inventors: Mark Humayun, Ashish Ahuja, Yu-Chong Tai, David Hinton, Robert Grubbs, Dennis Clegg, Lincoln V. Johnson, Sherry T. Hikita
  • Publication number: 20120009159
    Abstract: Disclosed herein are substrates for cell delivery to target tissues requiring treatment for various diseases that induce cell death, damage or loss of function. The substrates are configured to provide seeded cells, including stem cells, with a structural support that allows interconnection with and transmission of biological signals between the cells and the target tissue.
    Type: Application
    Filed: July 12, 2011
    Publication date: January 12, 2012
    Inventors: Mark Humayun, Ashish Ahuja, Yu-Chong Tai, David Hinton, Robert Grubbs, Dennis Clegg
  • Patent number: 4032173
    Abstract: A wheeled carrier such as a stroller comprising a frame having a base provided with wheels and a collapsible support movable between an erected position wherein it extends upwardly from the base and a collapsed position wherein it lies generally flat on the base, and a collapsible seat which is supported by a part of the support movable between an erected position to position the seat for use when the support is erected and a collapsed position to collapse the seat when the support is collapsed.The invention provides locking means such as toggle mechanisms connected between parts of the support and operable to lock the support in the erected position by movement of the seat-supporting part downwardly towards its erected position and releasable to permit collapsing of the support by movement of the seat-supporting part upwardly towards its collapsed position.The support comprises frame members pivotally connected together and to the base.
    Type: Grant
    Filed: October 3, 1975
    Date of Patent: June 28, 1977
    Inventor: John Dennis Clegg