Patents by Inventor Bakul C. Davé

Bakul C. Davé 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).

  • Publication number: 20130095276
    Abstract: A surface that is at least hydrophobic that is formed from a mixture that comprises a sol-gel that comprises an alkoxosilane precursor having a general formula of R?xSi(OR)4-x or (RO)3SiR?Si(OR)3, wherein R and R? are the same or different and comprise hydrogen, a substituted or unsubstituted alkyl, a substituted or unsubstituted alkenyl, a substituted or unsubstituted alkynyl, a substituted or unsubstituted or multiple ring aryl group, or a combination thereof, and R? is a substituted or unsubstituted alkylene, a substituted or unsubstituted alkenylene, a substituted or unsubstituted alkynylene, a substituted or unsubstituted or multiple ring arylene group, or a combination thereof, and x is 1 or 2. Also, the surface has a topography that decreases a contact area between the surface and a water droplet thereon.
    Type: Application
    Filed: August 10, 2012
    Publication date: April 18, 2013
    Inventors: Bakul C. Dave, Murti S. Rao
  • Publication number: 20120118823
    Abstract: Organosilicate compositions of variable charges, hydrophobicity, and porosity, and in particular organosilicate-based molecular filtration devices are disclosed.
    Type: Application
    Filed: June 24, 2011
    Publication date: May 17, 2012
    Applicant: SOUTHERN ILLINOIS UNIVERSITY CARBONDALE
    Inventors: Bakul C. Davé, Carol Wood
  • Patent number: 7541167
    Abstract: A porous glass composite material comprising at least one alkoxodisilane (precursor) having the general formula (or1)3Si-spacer-Si(OR2)3,wherein R1 and R2 are the same or different and may be hydrogen; substituted and unsubstituted, branched and unbranched C1-20-Alkyls; substituted and unsubstituted, branched and unbranched C1-20-alkenyls; substituted and unsubstituted, branched and unbranched C1-20-alkynyls; substituted, unsubstituted, and multiple ring aryl groups; or combinations thereof; and water. Devices including he glass composite materials are also described. Examples include chromatographic and other separation media, drug delivery vehicles, and electric and mechanical actuators.
    Type: Grant
    Filed: March 29, 2004
    Date of Patent: June 2, 2009
    Assignee: Southern Illinois University
    Inventors: Bakul C. Davé, Mukti S. Rao
  • Publication number: 20090028912
    Abstract: A controlled release substance containing organosilica sol-gels is provided. The organosilica sol-gels may be further functionalized with amino groups to control the rate of release of encapsulated molecules. The controlled release substance may be utilized as a controlled release fabric care substance, including at least one active fabric care substance in a host matrix comprising an organosilica gel. The fabric care substance may be at least one of a protein, enzyme, fragrance, anti-static agent, fabric softener, dye, or detergent, and may be in bead form, particle form or powder form.
    Type: Application
    Filed: July 28, 2008
    Publication date: January 29, 2009
    Inventor: Bakul C. Dave
  • Publication number: 20040185106
    Abstract: A porous glass composite material comprising at least one alkoxodisilane (precursor) having the general formula (or1)3Si-spacer-Si(OR2)3,wherein R1 and R2 are the same or different and may be hydrogen; substituted and unsubstituted, branched and unbranched C1-20-Alkyls; substituted and unsubstituted, branched and unbranched C1-20-alkenylis; substituted and unsubstituted, branched and unbranched C1-20-alkynyls; substituted, unsubstituted, and multiple ring aryl groups; or combinations thereof; and water. Devices including he glass composite materials are also described. Examples include chromatographic and other separation media, drug delivery vehicles, and electric and mechanical actuators.
    Type: Application
    Filed: March 29, 2004
    Publication date: September 23, 2004
    Inventors: Bakul C. Dave, Mukti S. Rao
  • Patent number: 6756217
    Abstract: A porous glass composite material is prepared comprising a gel containing water and a polymeric network containing at least one alkoxosilane derivative having a group of alterable charge, a hydrophobic group and a hydrophilic group. The alkoxosilane derivative is preferably a derivative of an alkoxosilane having the general formula (OR1)3Si-spacer-Si(OR2)3, wherein R1 and R2 are the same or different and may be hydrogen; substituted and unsubstituted, branched and unbranched C1-20-alkyls; substituted and unsubstituted, branched and unbranched C1-20-alkenyls; substituted and unsubstituted, branched and unbranched C1-20-alkynyls; substituted, unsubstituted, and multiple ring aryl groups; or combinations thereof; and water. Devices including the glass composite include chromatographic and other separation media, drug delivery vehicles, and electric and mechanical actuators.
    Type: Grant
    Filed: May 27, 1999
    Date of Patent: June 29, 2004
    Assignee: Southern Illinois University
    Inventors: Bakul C. Dave, Mukti S. Rao