Patents Assigned to Earth-Tech
  • Patent number: 11932793
    Abstract: The invention relates to a phosphor with garnet structure and a light-emitting device comprising the phosphor, wherein the phosphor includes the following components in percentage by weight: 38.47-45.19% of Y element, 9.49-22.09% of Al element, 2.06-24.31% of Ga element, 27.3-32.04% of O element, 0.43-1.46% of Ce element. In the phosphor particles, the shortest distance from the surface of one side of the particle to the surface of the opposite side through the centroid of the particle is defined as R, the longest distance is R1, and 5 ?m?R?40 ?m; any distance from the particle surface to the centroid is r, and 0<r<½R; and the space with the distance from the particle surface to the centroid direction being less than or equal to r is defined as rinner.
    Type: Grant
    Filed: May 19, 2022
    Date of Patent: March 19, 2024
    Assignees: GRIREM ADVANCED MATERIALS CO., LTD., Grirem Hi-Tech Co., Ltd, Rare Earth Functional Materials (Xiong'an) Innovation Center Co., Ltd.
    Inventors: Ronghui Liu, Shaowei Qin, Yuanhong Liu, Yanfeng Li, Xiaoxia Chen, Xiaole Ma, Yuan Xue
  • Patent number: 8047743
    Abstract: The present invention includes methods for investigating a site for possible selective removal of sediment containing a contaminant. The methods include calculating an adjusted contaminant concentration for sediment zones on the site. The site preferably contains a water course. The methods may also include determining whether sediment zone need remediation by comparing the adjusted contaminant concentration to a standard. The invention also includes a system for carrying out the described methods, at least partially implemented in a computer.
    Type: Grant
    Filed: July 19, 2010
    Date of Patent: November 1, 2011
    Assignees: Ann Arbor Technical Services, Earth-Tech
    Inventors: Philip B Simon, David Richardson, Peter M Simon
  • Publication number: 20110081202
    Abstract: The present invention includes methods for investigating a site for possible selective removal of sediment containing a contaminant. The methods include calculating an adjusted contaminant concentration for sediment zones on the site. The site preferably contains a water course. The methods may also include determining whether sediment zone need remediation by comparing the adjusted contaminant concentration to a standard. The invention also includes a system for carrying out the described methods, at least partially implemented in a computer.
    Type: Application
    Filed: July 19, 2010
    Publication date: April 7, 2011
    Applicants: ANN ARBOR TECHNICAL SERVICES, EARTH-TECH INC.
    Inventors: Philip B. Simon, David Richardson, Peter M. Simon
  • Patent number: 7758283
    Abstract: The present invention includes methods for investigating a site for possible selective removal of sediment containing a contaminant. The methods include calculating an adjusted contaminant concentration for sediment zones on the site. The site preferably contains a water course. The methods may also include determining whether sediment zone need remediation by comparing the adjusted contaminant concentration to a standard. The invention also includes a system for carrying out the described methods, at least partially implemented in a computer.
    Type: Grant
    Filed: March 6, 2008
    Date of Patent: July 20, 2010
    Assignees: Ann Arbor Technical Services, Earth-Tech
    Inventors: Philip B. Simon, David Richardson, Peter M. Simon
  • Publication number: 20080154435
    Abstract: The present invention includes methods for investigating a site for possible selective removal of sediment containing a contaminant. The methods include calculating an adjusted contaminant concentration for sediment zones on the site. The site preferably contains a water course. The methods may also include determining whether sediment zone need remediation by comparing the adjusted contaminant concentration to a standard. The invention also includes a system for carrying out the described methods, at least partially implemented in a computer.
    Type: Application
    Filed: March 6, 2008
    Publication date: June 26, 2008
    Applicants: ANN ARBOR TECHNICAL SERVICES, EARTH-TECH INC.
    Inventors: Philip B. Simon, David Richardson, Peter M. Simon
  • Patent number: 7344337
    Abstract: According to the methods, a site is investigated for possible selective removal of sediment containing a contaminant. An adjusted contaminant concentration is calculated for sediment zones on the site. The site preferably contains a water course. A determination may be made as to whether the sediment zone needs remediation by comparing the adjusted contaminant concentration to a standard. The method may be at least partially implemented in a computer.
    Type: Grant
    Filed: March 25, 2005
    Date of Patent: March 18, 2008
    Assignees: Ann Arbor Technical Services, Earth-Tech
    Inventors: Philip B. Simon, David Richardson, Peter M. Simon