Patents by Inventor Jinglan Zhao

Jinglan Zhao 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).

  • Sealed tube neutron generator incorporating an internal associated-ALP
    Patent number: 6297507
    Abstract: A sealed tube neutron generator (&agr;-STNG) incorporates an internal associated-&agr; detector for well logging. The &agr;-STNG comprises a gas-tight envelope, a Penning ion source, a gas supply, an accelerating electrode and a target as those in conventional STNG; and further comprises a special target chamber, an ion leading out and focusing assembly, an annular associated -&agr; particle detector mounted in the target chamber, a gas absorber, and a collimator for &agr;-particles. The &agr;-STNG can be employed within a nuclear Carbon/Oxygen Well Logging Apparatus which adopts the Associated Particle and Time of Flight Approach for collecting data to satisfy the special requirements of well logging, to expel the adverse effect resulted from cased hole materials and thermal neutrons capture for increasing the precision of carbon/oxygen ratio logged. When the carbon window is 3.17 to 4.65 Mev and the oxygen window is 4.68 to 6.
    Type: Grant
    Filed: January 22, 1999
    Date of Patent: October 2, 2001
    Assignees: Tsinghua University, Well Logging Company of Daqing Petroleum Administration Bureau
    Inventors: Zhenpeng Chen, Sida Xu, Shengjiang Zhu, Jinglan Zhao, Jingkang Deng, Webin Zhu, Yeying Sun, Xiancai Qu, Huazhang Li