Patents by Inventor Robert William McClelland

Robert William McClelland 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).

  • Method of purifying phycocyanin
    Patent number: 11795194
    Abstract: A method for purifying phycocyanin from a phycocyanin-containing solution is provided. The method comprises a first step of partially purifying the solution by aqueous two-phase separation (ATPS) and a second step of purifying the phycocyanin by ammonium sulfate precipitation. The purified phycocyanin product can in some cases be of a sufficiently pure grade to be used as a food or cosmetic pigment.
    Type: Grant
    Filed: August 2, 2018
    Date of Patent: October 24, 2023
    Assignee: University of Cape Town
    Inventors: Susan Thérèse Largier Harrison, Matthew Armstrong Burke, Robert William McClelland Pott, Marijke Antonia Fagan-Endres
  • METHOD OF PURIFYING PHYCOCYANIN
    Publication number: 20200255473
    Abstract: A method for purifying phycocyanin from a phycocyanin-containing solution is provided. The method comprises a first step of partially purifying the solution by aqueous two-phase separation (ATPS) and a second step of purifying the phycocyanin by ammonium sulfate precipitation. The purified phycocyanin product can in some cases be of a sufficiently pure grade to be used as a food or cosmetic pigment.
    Type: Application
    Filed: August 2, 2018
    Publication date: August 13, 2020
    Inventors: Susan Thérèse Largier Harrison, Matthew Armstrong Burke, Robert William McClelland Pott, Marijke Antonia Fagan-Endres
  • Magnetically actuated torsional micro-mechanical mirror system
    Patent number: 6538799
    Abstract: A torsional micro-mechanical mirror system includes a mirror assembly rotatably supported by a torsional mirror support assembly for rotational movement over and within a cavity in a base. The cavity is sized sufficiently to allow unimpeded rotation of the mirror assembly. The mirror assembly includes a support structure for supporting a reflective layer. The support structure is coplanar with and formed from the same wafer as the base. The torsional mirror support assembly includes at least one torsion spring formed of an electroplated metal. An actuator assembly is operative to apply a driving force to torsionally drive the torsional mirror support assembly, whereby torsional motion of the torsional mirror support assembly causes rotational motion of the mirror assembly. In another embodiment, a magnetic actuator assembly is provided to drive the mirror assembly.
    Type: Grant
    Filed: January 3, 2001
    Date of Patent: March 25, 2003
    Assignees: The Microoptical Corporation, Northeastern University
    Inventors: Robert William McClelland, Noa More Rensing, Mark Bradley Spitzer, Paul Daniel Aquilino, Paul Martin Zavracky
  • Method of fabrication of a torsional micro-mechanical mirror system
    Patent number: 6353492
    Abstract: A torsional micro-mechanical mirror system includes a mirror assembly rotatably supported by a torsional mirror support assembly for rotational movement over and within a cavity in a base. The cavity is sized sufficiently to allow unimpeded rotation of the mirror assembly. The mirror assembly includes a support structure for supporting a reflective layer. The support structure is coplanar with and formed from the same wafer as the base. The torsional mirror support assembly includes at least one torsion spring formed of an electroplated metal. An actuator assembly is operative to apply a driving force to torsionally drive the torsional mirror support assembly, whereby torsional motion of the torsional mirror support assembly causes rotational motion of the mirror assembly. In another embodiment, a magnetic actuator assembly is provided to drive the mirror assembly.
    Type: Grant
    Filed: January 3, 2001
    Date of Patent: March 5, 2002
    Assignees: The Microoptical Corporation, Northeastern University
    Inventors: Robert William McClelland, Noa More Rensing, Mark Bradley Spitzer, Paul Daniel Aquilino, Paul Martin Zavracky
  • Magnetically actuated torsional micro-mechanical mirror system
    Publication number: 20010022682
    Abstract: A torsional micro-mechanical mirror system includes a mirror assembly rotatably supported by a torsional mirror support assembly for rotational movement over and within a cavity in a base. The cavity is sized sufficiently to allow unimpeded rotation of the mirror assembly. The mirror assembly includes a support structure for supporting a reflective layer. The support structure is coplanar with and formed from the same wafer as the base. The torsional mirror support assembly includes at least one torsion spring formed of an electroplated metal. An actuator assembly is operative to apply a driving force to torsionally drive the torsional mirror support assembly, whereby torsional motion of the torsional mirror support assembly causes rotational motion of the mirror assembly. In another embodiment, a magnetic actuator assembly is provided to drive the mirror assembly.
    Type: Application
    Filed: January 3, 2001
    Publication date: September 20, 2001
    Applicant: THE MICROOPTICAL CORPORATION
    Inventors: Robert William McClelland, Noa More Rensing, Mark Bradley Spitzer, Paul Daniel Aquilino, Paul Martin Zavracky
  • Method of fabrication of a torsional micro-mechanical mirror system
    Publication number: 20010021058
    Abstract: A torsional micro-mechanical mirror system includes a mirror assembly rotatably supported by a torsional mirror support assembly for rotational movement over and within a cavity in a base. The cavity is sized sufficiently to allow unimpeded rotation of the mirror assembly. The mirror assembly includes a support structure for supporting a reflective layer. The support structure is coplanar with and formed from the same wafer as the base. The torsional mirror support assembly includes at least one torsion spring formed of an electroplated metal. An actuator assembly is operative to apply a driving force to torsionally drive the torsional mirror support assembly, whereby torsional motion of the torsional mirror support assembly causes rotational motion of the mirror assembly. In another embodiment, a magnetic actuator assembly is provided to drive the mirror assembly.
    Type: Application
    Filed: January 3, 2001
    Publication date: September 13, 2001
    Applicant: THE MICROOPTICAL CORPORATION
    Inventors: Robert William McClelland, Noa More Rensing, Mark Bradley Spitzer, Paul Daniel Aquilino, Paul Martin Zavracky
  • Torsional micro-mechanical mirror system
    Patent number: 6201629
    Abstract: A torsional micro-mechanical mirror system includes a mirror assembly rotatably supported by a torsional mirror support assembly for rotational movement over and within a cavity in a base. The cavity is sized sufficiently to allow unimpeded rotation of the mirror assembly. The mirror assembly includes a support structure for supporting a reflective layer. The support structure is coplanar with and formed from the same wafer as the base. The torsional mirror support assembly includes at least one torsion spring formed of an electroplated metal. An actuator assembly is operative to apply a driving force to torsionally drive the torsional mirror support assembly, whereby torsional motion of the torsional mirror support assembly causes rotational motion of the mirror assembly. In another embodiment, a magnetic actuator assembly is provided to drive the mirror assembly.
    Type: Grant
    Filed: August 26, 1998
    Date of Patent: March 13, 2001
    Assignees: MicroOptical Corporation, Northeastern University
    Inventors: Robert William McClelland, Noa More Rensing, Mark Bradley Spitzer, Paul Daniel Aquilino, Paul Martin Zavracky