VTechWorks staff will be away for the Memorial Day holiday on Monday, May 27, and will not be replying to requests at that time. Thank you for your patience.

Now showing items 70-89 of 619

    • Cage positioned tilting pad bearing 

      Virginia Tech Intellectual Properties, Inc.; Kirk, R. Gordon; Songer, William (United States Patent and Trademark Office, 2016-07-19)
      A tilting pad bearing for a high speed rotary machines, such as a turbocharger for an internal combustion engine, comprises a cage and a plurality of tilting pads. The cage is formed by two annular rings separated by spacers ...
    • Cancellation of inductor winding capacitance 

      Virginia Tech Intellectual Properties, Inc.; Lee, Fred C.; Wang, Shuo (United States Patent and Trademark Office, 2009-06-30)
      An inductor device or filter such as an electromagnetic interference (EMI) filter which includes an inductor provides cancellation of parasitic capacitance of the inductor and extends high frequency performance of the ...
    • Carbonate polymers containing ethenyl aryl moieties 

      The Dow Chemical Company; Virginia Polytechnic Institute and State University; Chamberlin, Thomas A.; Bales, Stephen E.; Mullins, Michael J.; McGrath, James E.; Marks, Maurice J.; Knauss, Daniel M. (United States Patent and Trademark Office, 1994-11-08)
      There are disclosed carbonate polymers having ethenyl aryl moieties. Such carbonate polymers are prepared from one or more multi-hydric compounds and have an average degree of polymerization of at least about 1 based on ...
    • Cardiac computed tomography methods and systems using fast exact/quasi-exact filtered back projection algorithms 

      Virginia Tech Intellectual Properties, Inc.; Zhao, Jun Chao; Wang, Ge; Katsevich, Alexander J.; Lu, Yang; Yu, Hengyong (United States Patent and Trademark Office, 2013-07-09)
      The present invention provides systems, methods, and devices for improved computed tomography (CT). More specifically, the present invention includes methods for improved cone-beam computed tomography (CBCT) resolution ...
    • Carnitine analogues as topical, microbicidal spermicides 

      Virginia Tech Intellectual Properties, Inc.; Gandour, Richard D.; Doncel, Gustavo F.; Savle, Prashant S. (United States Patent and Trademark Office, 2003-12-02)
      Acylcarnitine analogues having alkyl side chains of 10 to 30 carbon atoms display excellent spermicidal and anti-HIV activity, a well as being potent inhibitors of the growth of Candida albicans.
    • Cellulose derivatives with a low degree of substitution 

      Center for Innovative Technology; Virginia Polytechnic Institute and State University; Virginia Tech Intellectual Properties, Inc.; Glasser, Wolfgang G.; Samaranayake, Gamini S.; Sealey, II, James E. (United States Patent and Trademark Office, 1996-06-04)
      The invention is directed to the formation of cellulose derivatives using homogenous phase reaction conditions. Cellulose is dissolved using DMAc/LiCl and a reagent system is added to promote the acylation of an appropriate ...
    • Cellulose-solvent-based lignocellulose fractionation with modest reaction conditions and reagent cycling 

      Virginia Tech Intellectual Properties, Inc.; Zhang, Y. Percival (United States Patent and Trademark Office, 2014-07-22)
      Embodiments of the present invention overcome the well-known recalcitrance of lignocellulosic biomass in an economically viable manner. A process and system are provided for the efficient fractionation of lignocellulosic ...
    • Cellulose-solvent-based lignocellulose fractionation with modest reaction conditions and reagent cycling 

      Virginia Tech Intellectual Properties, Inc.; Zhang, Y. H. Percival (United States Patent and Trademark Office, 2017-05-30)
      Embodiments of the present invention overcome the well-known recalcitrance of lignocellulosic biomass in an economically viable manner. A process and system are provided for the efficient fractionation of lignocellulosic ...
    • Ceramic materials with low thermal conductivity and low coefficients of thermal expansion 

      Center for Innovative Technology; Virginia Polytechnic & State University; Virginia Tech Intellectual Properties, Inc.; Kim, Jin-Sung Gook; Swanson, Robert E.; Brown, Jr., Jesse J.; Hirschfeld, Deidre A.; Liu, Dean-Mo; Yang, Yaping; Li, Tingkai; Van Aken, Steven (United States Patent and Trademark Office, 1992-04-07)
      Compositions having the general formula (Ca.sub.x Mg.sub.1-x)Zr.sub.4 (PO.sub.4).sub.6 where x is between 0.5 and 0.99 are produced by solid state and sol-gel processes. In a preferred embodiment, when x is between 0.5 and ...
    • Chemical modification of shaped hydrogels in non-aqueous medium 

      Center for Innovative Technology; Virginia Polytechnic Institute and State University; Virginia Tech Intellectual Properties, Inc.; Glasser, Wolfgang G.; Frazier, Charles E.; Samaranayake, Gamini S. (United States Patent and Trademark Office, 1996-06-25)
      A method is described for the chemical modification of pre-shaped hydrogels in non-aqueous medium. The conditions permit the reaction of highly expanded, porous hydrogel particles, such as spherical beads, using pseudo ...
    • Chemical processes using aryl diphosphine containing catalysts 

      Virginia Polytechnic Institute; Celanese International Corporation; Hanson, Brian E.; Kohlpaintner, Christian W.; Ding, Hao (United States Patent and Trademark Office, 2000-03-28)
      The present invention provides novel water-soluble diphosphines having the formula ##STR1## wherein X, Y, R.sub.1-18 and n are defined herein, and which can be complexed with a transition metal to form a novel catalyst ...
    • Chemical-mechanical dewatering process 

      Virginia Tech Intellectual Properties, Inc.; Yoon, Roe-Hoan; Basilio, Cesar I. (United States Patent and Trademark Office, 1997-09-23)
      Small, wet particulate material is effectively dried by adding a hydrophobizing agent to coat the surfaces of the particulates, and then mechanically removing water droplets from the surfaces of the particulates. Once on ...
    • Chimeric infectious DNA clones, chimeric porcine circoviruses and uses thereof 

      Iowa State University Research Foundation, Inc.; Virginia Tech Intellectual Properties, Inc.; Halbur, Patrick G.; Meng, Xiang-Jin; Fenaux, Martijn (United States Patent and Trademark Office, 2007-10-09)
      The present invention relates to infectious DNA clones, infectious chimeric DNA clones of porcine circovirus (PCV), vaccines and means of protecting pigs against viral infection or postweaning multisystemic wasting syndrome ...
    • Chimeric infectious DNA clones, chimeric porcine circoviruses and uses thereof 

      Iowa State University Research Foundation, Inc.; Virginia Tech Intellectual Properties, Inc.; Halbur, Patrick G.; Meng, Xiang-Jin; Fenaux, Martijn (United States Patent and Trademark Office, 2007-10-02)
      The present invention relates to infectious DNA clones, infectious chimeric DNA clones of porcine circovirus (PCV), vaccines and means of protecting pigs against viral infection or postweaning multisystemic wasting syndrome ...
    • Chimeric infectious DNA clones, chimeric porcine circoviruses and uses thereof 

      Iowa State University Research Foundation, Inc.; Virginia Tech Intellectual Properties, Inc.; Halbur, Patrick G.; Meng, Xiang-Jin; Fenaux, Martijn (United States Patent and Trademark Office, 2015-12-15)
      The present invention relates to infectious DNA clones, infectious chimeric DNA clones of porcine circovirus (PCV), vaccines and means of protecting pigs against viral infection or postweaning multisystemic wasting syndrome ...
    • Chimeric infectious DNA clones, chimeric porcine circoviruses and uses thereof 

      Iowa State University Research Foundation, Inc.; Virginia Tech Intellectual Properties, Inc.; Halbur, Patrick G.; Meng, Xiang-Jin; Fenaux, Martijn (United States Patent and Trademark Office, 2011-11-15)
      The present invention relates to infectious DNA clones, infectious chimeric DNA clones of porcine circovirus (PCV), vaccines and means of protecting pigs against viral infection or postweaning multisystemic wasting syndrome ...
    • Chimeric infectious DNA clones, chimeric porcine circoviruses and uses thereof 

      Iowa State University Research Foundation, Inc.; Virginia Tech Intellectual Properties, Inc.; Halbur, Patrick G.; Meng, Xiang-Jin; Fenaux, Martijn (United States Patent and Trademark Office, 2009-08-18)
      The present invention relates to infectious DNA clones, infectious chimeric DNA clones of porcine circovirus (PCV), vaccines and means of protecting pigs against viral infection or postweaning multisystemic wasting syndrome ...
    • Chimeric infectious DNA clones, chimeric porcine circoviruses and uses thereof 

      Virginia Tech Intellectual Properties, Inc.; Iowa State University Reserach Foundation, Inc.; Meng, Xiang-Jin; Halbur, Patrick G.; Fenaux, Martijn (United States Patent and Trademark Office, 2018-02-13)
      The present invention relates to infectious DNA clones, infectious chimeric DNA clones of porcine circovirus (PCV), vaccines and means of protecting pigs against viral infection or postweaning multisystemic wasting syndrome ...
    • Chipped wood as a substrate for plant growth 

      Virginia Tech Intellectual Properties, Inc.; Wright, Robert D. (United States Patent and Trademark Office, 2007-01-23)
      The present invention provides compositions comprising chipped whole wood logs as a substrate for growth of plants. It further provides a method of making a substrate comprising wood chips for growth of plants, and a method ...
    • Chitin-based coatings 

      Virginia Tech Intellectual Properties, Inc.; Glasser, Wolfgang G.; Samaranayake, Gamini S.; Toffey, Ackah (United States Patent and Trademark Office, 1999-05-04)
      A chitosan starting material is combined with a dilute organic acid to produce a chitosonium ion complex. The chitosonium ion complex is then cast, sprayed, extruded, or otherwise processed to produce filaments, coatings, ...