Patents by Inventor Dan Scheffer

Dan Scheffer 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).

  • POLYMER COMPOSITIONS CONTAINING CARBONACEOUS FILLERS
    Publication number: 20110086206
    Abstract: Compositions comprising carbonaceous filler, polymeric binder, and at least one organic compound having at least one charged functional group.
    Type: Application
    Filed: April 3, 2010
    Publication date: April 14, 2011
    Applicant: VORBECK MATERIALS CORP.
    Inventors: Dan Scheffer, Vipin Varma
  • ONE-PART POLYSILOXANE INKS AND COATINGS AND METHOD OF ADHERING THE SAME TO A SUBSTRATE
    Publication number: 20100239871
    Abstract: One-part polysiloxane inks and coatings comprising at least one cross-linkable polysiloxane comprising pendant radical polymerizable groups, at least one pigment, and at least one polymerization initiator prior to curing. The inks and coatings may be applied to a substrate and cured.
    Type: Application
    Filed: December 18, 2009
    Publication date: September 23, 2010
    Applicant: VORBECK MATERIALS CORP.
    Inventors: Dan Scheffer, Vipin Varma
  • Method for controlling particle conductivity in a liquid developer containing yttrium or scandium charge adjuvant
    Patent number: 7794910
    Abstract: In one aspect of the present system and method, a method for enhancing a chargeability of a liquid developer includes presenting a liquid developer and combining a Group 3 based charge adjuvant with the liquid developer.
    Type: Grant
    Filed: January 31, 2007
    Date of Patent: September 14, 2010
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Hannoch Ron, Dan Scheffer
  • System and method for controlling particle conductivity in a liquid developer
    Publication number: 20080182196
    Abstract: In one aspect of the present system and method, a method for enhancing a chargeability of a liquid developer includes presenting a liquid developer and combining a Group 3 based charge adjuvant with the liquid developer
    Type: Application
    Filed: January 31, 2007
    Publication date: July 31, 2008
    Inventors: Hannoch Ron, Dan Scheffer