Now showing items 1-20 of 545

    • 2-aroyl-4-acyl paclitaxel (Taxol) analogs 

      Bristol-Myers Squibb Company; Virginia Tech Intellectual Properties, Inc.; Kadow, John F.; Chordia, Mahendra Devichand; Jagtap, Prakash G.; Kingston, David George (United States Patent and Trademark Office, 2002-11-05)
      2-debenzoyl-4-deacetyl paclitaxel, antineoplastic analogs thereof and intermediates are taught, as well as the formation of the compound, analogs and intermediates. The compound, analogs and intermediates may be used to ...
    • 2-debenzoyl-2-acyl taxol derivatives and method for making same 

      Virginia Tech Intellectual Properties, Inc.; Kingston, David G.; Chaudhary, Ashok Gopal; Gharpure, Milind Moreshwar; Rimoldi, John Matthew; Gunatilaka, A.A. Leslie (United States Patent and Trademark Office, 1999-12-14)
      The present invention relates to 2-debenzoyl-2-acyl taxol derivatives, analogues thereof and methods for making same. Compounds of the present invention include compounds having the general formula: ##STR1## wherein R.sub.1 ...
    • 2-Debenzoyl-2-acyl taxol derivatives and methods for making same 

      Virginia Tech Intellectual Properties, Inc.; Kingston, David G.; Gunatilaka, A. Leslie; Chaudhary, Ashok Gopal; Gharpure, Milind Moreshwar; Rimoldi, John Matthew (United States Patent and Trademark Office, 1997-12-30)
      Compounds having the general formula: ##STR1## wherein R.sub.1 is an alkyl or substituted alkyl; R.sub.2 is selected from the group consisting of H and C(O)R.sub.a ; R.sub.3 is selected from the group consisting of H, ...
    • 2T-1C ferroelectric random access memory and operation method thereof 

      SAMSUNG ELECTRONICS CO., LTD.; Virginia Tech Intellectual Properties, Inc.; Yoo, In-kyeong (United States Patent and Trademark Office, 2002-06-11)
      A 2T-1C FRAM, each cell of which includes two transistors and one ferroelectric capacitor so that the “charging” and “discharging” of the ferroelectric capacitor used in conjunction with the p-n junction of the two transistors ...
    • 7-deoxy-6-substituted paclitaxels 

      Virginia Tech Intellectual Properties, Inc.; Bristol-Myers Squibb Company; Kadow, John F.; Kingston, David G.; Wittman, Mark D.; Altstadt, Thomas J.; Liang, Xian (United States Patent and Trademark Office, 1998-06-30)
      The present invention concerns novel paclitaxel derivatives, their use as antitumor agents, and pharmaceutical formulations.
    • Accelerated commutation for passive clamp isolated boost converters 

      Virginia Tech Intellectual Properties, Inc.; Lee, Fred C.; Lai, Jih-Sheng; Zhu, Lizhi (United States Patent and Trademark Office, 2005-04-05)
      An efficient and cost effective bidirectional DC/DC converter reduces switch voltage stress via accelerated commutation allowing use of a low-cost passive clamp circuit in boost mode. The converter includes a primary ...
    • Accessible kiosk 

      Virginia Tech Intellectual Properties, Inc.; Honaker, Andrew B.; Pasqualino, III, Philip P. (United States Patent and Trademark Office, 1999-06-01)
    • Accurate magnetic field sensor and method for wireless phasor measurement unit 

      Virginia Polytechnic Institute and State University; Liu, Yilu; Zhang, Guorui; Zhang, Yingchen (United States Patent and Trademark Office, 2013-05-07)
      A phasor measurement unit and method including a transducer for transduction measurement of an electrical characteristic of a current carrying element in electrical power generation or distribution systems, the transducer ...
    • Acousto-fluidic driver for active control of turbofan engine noise 

      Virginia Tech Intellectual Properties, Inc.; Defense Research Technologies, Inc.; Drzewiecki, Tadeusz M.; Fuller, Christopher R.; Burdisso, Ricardo A.; Thomas, Russell H.; Niemczuk, John B. (United States Patent and Trademark Office, 1997-09-02)
      Reduction or cancellation of acoustic noise is achieved by providing an amplified, oppositely phased version of the noise by means of an acousto-fluidic amplifier. The amplified acoustic output noise is delivered through ...
    • Active control of aircraft engine inlet noise using compact sound sources and distributed error sensors 

      Center for Innovative Technology; Virginia Polytechnic Institute and State University; Virginia Tech Intellectual Properties, Inc.; Burdisso, Ricardo A.; Fuller, Chris R.; O'Brien, Walter F.; Thomas, Russell H.; Dungan, Mary E. (United States Patent and Trademark Office, 1994-10-11)
      An active noise control system using a compact sound source is effective to reduce aircraft engine duct noise. The fan noise from a turbofan engine is controlled using an adaptive filtered-x LMS algorithm. Single multi ...
    • Active control of aircraft engine inlet noise using compact sound sources and distributed error sensors 

      Center for Innovative Technology; Virginia Polytechnic Institute and State University; Virginia Tech Intellectual Properties, Inc.; Burdisso, Ricardo A.; Fuller, Chris R.; O'Brien, Walter F.; Thomas, Russell H.; Dungan, Mary E. (United States Patent and Trademark Office, 1996-05-07)
      An active noise control system using a compact sound source is effective to reduce aircraft engine duct noise. The fan noise from a turbofan engine is controlled using an adaptive filtered-x LMS algorithm. Single multi ...
    • Active dual reaction mass absorber for vibration control 

      Virginia Tech Intellectual Properties, Inc.; Burdisso, Ricardo A.; Heilmann, John D. (United States Patent and Trademark Office, 1999-03-23)
      An active vibration absorber including a frame connected to a structure to be controlled and at least two reaction mass elements operatively connected to the frame. Each of the reaction mass elements is independently movable ...
    • Active/passive distributed absorber for vibration and sound radiation control 

      Virginia Tech Intellectual Properties, Inc.; Fuller, Christopher R.; Cambou, Pierre E. (United States Patent and Trademark Office, 2004-03-02)
      The active/passive absorber for extended vibration and sound radiation control includes principally two layers. The first layer has a low stiffness per unit area which allows motion in the direction perpendicular to its ...
    • Active/passive distributed absorber for vibration and sound radiation control 

      Virginia Tech Intellectual Properties, Inc.; Fuller, Christopher R.; Cambou, Pierre E. (United States Patent and Trademark Office, 2005-10-25)
      The active/passive absorber for extended vibration and sound radiation control includes principally two layers. The first layer has a low stiffness per unit area which allows motion in the direction perpendicular to its ...
    • Active/passive distributed absorber for vibration and sound radiation control 

      Virginia Tech Intellectual Properties, Inc.; Fuller, Christopher R.; Kondylas, Kathleen (United States Patent and Trademark Office, 2009-08-11)
      The active/passive absorber for extended vibration and sound radiation control includes principally two layers. The first layer has a low stiffness per unit area which allows motion in the direction perpendicular to its ...
    • Active/passive distributed absorber for vibration and sound radiation control 

      Virginia Tech Intellectual Properties, Inc.; Fuller, Christopher R.; Kondylas, Kathleen (United States Patent and Trademark Office, 2012-05-08)
      Vibration or acoustic sound control is achieved using an elastic layer of thermal or insulation material in which a plurality of discrete masses are distributed throughout. The elastic layer may be installed as a pre-formed ...
    • Active/passive distributed absorber for vibration and sound radiation control 

      Virginia Tech Intellectual Properties, Inc.; Fuller, Christopher R.; Kondylas, Kathleen (United States Patent and Trademark Office, 2010-05-11)
      Vibration or acoustic sound control is achieved using an elastic layer of thermal or insulation material in which a plurality of discrete masses are distributed throughout. The elastic layer may be installed as a pre-formed ...
    • Adaptive bus voltage positioning for two-stage voltage regulators 

      Virginia Tech Intellectual Properties, Inc.; Lee, Fred C.; Xu, Ming Gang; Wei, Jia (United States Patent and Trademark Office, 2007-01-09)
      Alteration of voltage input to a voltage regulator output stage from a Vbus regulator stage in a two-stage voltage regulator provides optimal Vbus voltage placement for a wide range of current loads ...
    • Adaptive on-time control for power factor correction stage light load efficiency 

      Virginia Tech Intellectual Properties, Inc.; Lee, Fred C.; Wang, Chung-Hsing Hsuan; Xu, Ming Gang; Li, Qian (United States Patent and Trademark Office, 2014-08-12)
      Light load efficiency of a power factor correction circuit is improved by adaptive on-time control and providing for selection between a continuous conduction mode and a discontinuous conduction mode wherein the discontinuous ...
    • Adaptive personal active noise system 

      Virginia Tech Intellectual Properties, Inc.; Saunders, William; Vaudrey, Michael A. (United States Patent and Trademark Office, 2000-06-20)
      An improved personal noise attenuation system which attenuates both tonal and broadband sound and which includes a spatially adjustable acousto-electric sensor and attenuation means including both feedback and feed forward ...