Environmental Technology

Citations to U.S. patents by U.S. patents granted in 2020

Related WIPO fields:[Chemical engineering | Engines, pumps, turbines | Medical technology | Materials, metallurgy | Basic materials chemistry | Measurement | Thermal processes and apparatus]  All WIPO fields

  1. 9 6402944    Water softener control valve with removable seal stack
  Inventors: Don Vaughan

  2. 7 3915679    NA
  Inventors: Inventors not available

  2. 7 4740408    Ceramic honeycomb body
  Inventors: Shigeru Mochida; Masaru Kojima; Jun Kitagawa; Koichi Ikeshima

  2. 7 4830116    Fire extinguishing system
  Inventors: James W. Walden; Jimmy E. Malone

  2. 7 5511621    Local flooding fine water spray fire suppression system using recirculation principles
  Inventors: Cheng Yu Yao

  2. 7 5992532    Wet pipe fire protection system
  Inventors: John B. Ramsey, Jr.; James G. Retzloff

  2. 7 6390203    Fire suppression apparatus and method
  Inventors: Yulian Y. Borisov; David Paul Kutchinski; John W. Newell; Gary Allen O'Neal

  8. 6 1738656    NA
  Inventors: Inventors not available

  8. 6 2537009    NA
  Inventors: Inventors not available

  8. 6 4289611    Multi-stage cyclone separator
  Inventors: Heinz Brockmann

  8. 6 4359097    Sprinkler system
  Inventors: Lennart Claussen

  8. 6 4374025    Water conditioning regeneration control
  Inventors: Harvey L. Loke

  8. 6 4905765    Smoke detector/remote controlled shape-memory alloy fire extinguisher discharge apparatus
  Inventors: George P. Hein

  8. 6 4919314    Time control device for water conditioning apparatus
  Inventors: Masanobu Nishiyama; Hitoshi Abe; Yasuo Ochi

  8. 6 5096596    Process and apparatus for removal of mineral contaminants from water
  Inventors: Terence P. Hellenbrand; Jeffrey J. Hellenbrand

  8. 6 5609211    Extended coverage automatic ceiling sprinkler
  Inventors: George G. Meyer; Stephen J. Meyer; George S. Polan; Kevin Dolan

  8. 6 5919373    Method and system for purification of potable water
  Inventors: C. Lee Naaktgeboren

  8. 6 6059044    Fire protection sprinkler and deflector
  Inventors: Michael A. Fischer

  8. 6 6596159    Automatic regeneration valve for water softener
  Inventors: Shigeru Maruyama; Yoshisada Furukawa

  8. 6 6696963    Method and system for anticipating salt depletion
  Inventors: Jeffrey Zimmerman; Gregory Kennedy; Jose Castro; Wesley F. Chapman; John E. Ziegenfuss

  8. 6 6840457    Wet-pipe sprinkler system, method of supplying water and dealing with water leak in the sprinkler system
  Inventors: Hyo-jung Park; Sung Sik Yun; Kyong-gwan Lee; Seong-ock Hong; Hyun Ku Kim

  8. 6 7363987    Sprinkler system for converting non-sprinklered buildings
  Inventors: William Grant

  8. 6 8293182    Integrated SCR and AMOx catalyst systems
  Inventors: R. Samuel Boorse; Matthew Tyler Caudle; Martin Dieterle; Sanath Kumar; Kenneth E. Voss

  8. 6 8733461    Fire sprinkler system and method of installation
  Inventors: Jeffrey J. Pigeon

  8. 6 9381386    Fire sprinkler with flue-penetrating non-circular spray pattern
  Inventors: Jeffrey J. Pigeon

  1. 24 5820646    Inline filter apparatus
  Inventors: Gary R. Gillingham; Wayne M. Wagner; Joseph C. Tokar; Daniel T. Risch; Jim C. Rothman; Fred H. Wahlquist

  2. 22 6190432    Filter arrangement; sealing system; and methods
  Inventors: Steven Scott Gieseke; Carolyn J. Finnerty

  3. 20 5772883    Slanted inline filter
  Inventors: Jim C. Rothman; Gary R. Gillingham; Wayne M. Wagner; Joseph C. Tokar; Daniel T. Risch; Fred H. Wahlquist; Bernard A. Matthys

  3. 20 5902364    Conical filter
  Inventors: Joseph C. Tokar; Gary R. Gillingham; Wayne M. Wagner; Daniel T. Risch; Jim C. Rothman; Fred H. Wahlquist; Edward A. Steinbrueck; Steven A. Carter

  3. 20 6235195    Filter element incorporating a handle member
  Inventors: Joseph C. Tokar

  6. 19 6179890    Air cleaner having sealing arrangement between media arrangement and housing
  Inventors: Timothy M. Ramos; Edward A. Steinbrueck; Steven Scott Gieseke; Carolyn J. Finnerty; Wayne R. W. Bishop

  7. 18 6673136    Air filtration arrangements having fluted media constructions and methods
  Inventors: Gary R. Gillingham; Mark A. Gogins; Thomas M. Weik

  7. 18 6808692    Enhanced mercury control in coal-fired power plants
  Inventors: Klaus H. Oehr

  7. 18 6966940    Air filter cartridge
  Inventors: William J. Krisko; Wayne R. W. Bishop; Steven Scott Gieseke; Carolyn J. Finnerty; David W. Nelson

  7. 18 D398046    Combined filter element and frame therefor
  Inventors: Gary R. Gillingham; Bernard A. Matthys; Joseph C. Tokar; Daniel T. Risch

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