Check Patents (Class D23/237)
  • Vacuum breaker
    Patent number: D531697
    Type: Grant
    Filed: June 29, 2005
    Date of Patent: November 7, 2006
    Assignee: Watts Drainage Products Inc.
    Inventor: Steven Hofmann
  • Check valve
    Patent number: D319683
    Type: Grant
    Filed: June 15, 1987
    Date of Patent: September 3, 1991
    Inventor: John P. Scaramucci
  • Swing check valve
    Patent number: D319684
    Type: Grant
    Filed: June 15, 1987
    Date of Patent: September 3, 1991
    Inventor: John P. Scaramucci
  • Swing check valve
    Patent number: D320644
    Type: Grant
    Filed: June 8, 1987
    Date of Patent: October 8, 1991
    Inventor: John P. Scaramucci
  • Slider valve fitment
    Patent number: D618763
    Type: Grant
    Filed: December 23, 2008
    Date of Patent: June 29, 2010
    Assignee: Liqui-Box Corporation
    Inventor: James Johnson
  • Dual port slide valve
    Patent number: D619219
    Type: Grant
    Filed: August 26, 2008
    Date of Patent: July 6, 2010
    Inventor: Evan Waymire
  • Reduced bleed check valve
    Patent number: D623723
    Type: Grant
    Filed: April 2, 2009
    Date of Patent: September 14, 2010
    Assignee: PGI International, Ltd.
    Inventor: Spencer M. Nimberger
  • Minimum bleed check valve
    Patent number: D624157
    Type: Grant
    Filed: April 2, 2009
    Date of Patent: September 21, 2010
    Assignee: PGI International, Ltd.
    Inventor: Spencer M. Nimberger
  • Slide valve
    Patent number: D625390
    Type: Grant
    Filed: February 18, 2010
    Date of Patent: October 12, 2010
    Assignee: Max Widenmann KG Armaturenfabrik
    Inventor: Johann Ambrosi
  • Check valve
    Patent number: D354335
    Type: Grant
    Filed: April 5, 1993
    Date of Patent: January 10, 1995
    Assignee: Quest Medical, Inc.
    Inventor: George G. Siposs
  • Transparent sump pump check valve
    Patent number: D364210
    Type: Grant
    Filed: July 19, 1994
    Date of Patent: November 14, 1995
    Assignee: Drummond Industries
    Inventors: Kenneth W. Loerop, Matthew Gieser
  • Flow rate adjusting plate for a rotary nozzle type molten metal pouring unit
    Patent number: D371825
    Type: Grant
    Filed: December 19, 1994
    Date of Patent: July 16, 1996
    Assignees: NKK Corporation, Tokyo Yogyo Kabushiki Kaisha, Nippon Rotary Nozzle Co., Ltd., Kokan Kikai Kogyo Kabushiki Kaisha
    Inventor: Tetsuya Yoshihara
  • Slider valve fitment
    Patent number: D641832
    Type: Grant
    Filed: December 29, 2008
    Date of Patent: July 19, 2011
    Assignee: Liqui-Box Corporation
    Inventor: James W. Johnson
  • Plumbing fitting
    Patent number: D644717
    Type: Grant
    Filed: September 30, 2009
    Date of Patent: September 6, 2011
    Assignee: Larkin & Shoushani Solutions, Pty.
    Inventors: Anthony William Larkin, Ronnie Shoushani
  • Oil distributor
    Patent number: D385951
    Type: Grant
    Filed: June 27, 1995
    Date of Patent: November 4, 1997
    Assignee: Tetra Laval Holdings & Finance S.A.
    Inventors: Waldemar Szymanski, Krzysztof Malecki
  • Flow rate adjusting plate for a rotary nozzle type molten metal pouring unit
    Patent number: D386568
    Type: Grant
    Filed: November 20, 1995
    Date of Patent: November 18, 1997
    Assignees: NKK Corportion, Tokyo Yogyo Kabushiki Kaisha, Nippon Rotary Nozzle Co., Ltd., Kokan Kikai Kogyo Kabushiki Kaisha
    Inventor: Tetsuya Yoshihara
  • Sealing valve
    Patent number: D397766
    Type: Grant
    Filed: October 31, 1996
    Date of Patent: September 1, 1998
    Assignee: Alfa Laval Agri AB
    Inventor: Kenneth Gustafsson
  • Slide valve
    Patent number: D397767
    Type: Grant
    Filed: October 31, 1996
    Date of Patent: September 1, 1998
    Assignee: Alfa Laval Agri AB
    Inventor: Kenneth Gustafsson
  • Check valve
    Patent number: D419217
    Type: Grant
    Filed: October 19, 1998
    Date of Patent: January 18, 2000
    Inventor: Kuo-Jium Lee
  • Check valve
    Patent number: D426617
    Type: Grant
    Filed: December 18, 1998
    Date of Patent: June 13, 2000
    Assignee: Hansen Developments Ltd.
    Inventor: Albert Frederick Hansen
  • Valve slider
    Patent number: D433482
    Type: Grant
    Filed: September 30, 1999
    Date of Patent: November 7, 2000
    Assignee: Griffin LLC
    Inventors: Larry Gene Beaver, Mark T. MacLean-Blevins, Craig Stephen Ketcham
  • Cartridge check assembly
    Patent number: D721789
    Type: Grant
    Filed: February 19, 2014
    Date of Patent: January 27, 2015
    Assignee: Watts Water Technologies, Inc.
    Inventor: John D. Lu
  • Check valve assembly
    Patent number: D755349
    Type: Grant
    Filed: July 31, 2014
    Date of Patent: May 3, 2016
    Assignee: B&B Molders LLC
    Inventors: Bradly Michael Murphey, Adam Nathaniel Schramski, Michael Patrick Dittrich
  • Check valve body
    Patent number: D757218
    Type: Grant
    Filed: July 31, 2014
    Date of Patent: May 24, 2016
    Assignee: B&B Molders LLC
    Inventors: Bradly Michael Murphey, Adam Nathaniel Schramski, Michael Patrick Dittrich
  • Check valve with valve seat
    Patent number: D776791
    Type: Grant
    Filed: April 16, 2015
    Date of Patent: January 17, 2017
    Assignee: SUGINO MACHINE LIMITED
    Inventor: Kouichi Itou
  • Valve controller
    Patent number: D791918
    Type: Grant
    Filed: December 3, 2015
    Date of Patent: July 11, 2017
    Assignee: METSO FLOW CONTROL OY
    Inventors: Saara Anundi, Antti Eloheimo
  • Check valve
    Patent number: D871544
    Type: Grant
    Filed: May 21, 2019
    Date of Patent: December 31, 2019
    Assignee: Emerson Electric Co.
    Inventors: Gregory E. Sisk, Terry F. Farace
  • Check valve
    Patent number: D872232
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: January 7, 2020
    Assignee: Emerson Electric Co.
    Inventors: Gregory E. Sisk, Terry F. Farace
  • Check valve
    Patent number: D872233
    Type: Grant
    Filed: May 21, 2019
    Date of Patent: January 7, 2020
    Assignee: Emerson Electric Co.
    Inventors: Gregory E. Sisk, Terry F. Farace
  • Check valve
    Patent number: D895773
    Type: Grant
    Filed: April 9, 2018
    Date of Patent: September 8, 2020
    Assignee: Reflex Instruments Asia Pacific PTY LTd
    Inventor: James Barry Reilly
  • One-way flow spout insert
    Patent number: D919058
    Type: Grant
    Filed: January 22, 2020
    Date of Patent: May 11, 2021
    Inventor: Ronald D Widya
  • Dishwasher back flow check valve
    Patent number: D921157
    Type: Grant
    Filed: March 9, 2019
    Date of Patent: June 1, 2021
    Inventors: Noah Moffett, III, Joe Carter
  • Vacuum break twist tap
    Patent number: D935563
    Type: Grant
    Filed: February 21, 2020
    Date of Patent: November 9, 2021
    Assignee: CORPLEX PLASTICS UK LTD
    Inventor: Ronald E. Kieras
  • Vacuum break twist tap
    Patent number: D935564
    Type: Grant
    Filed: February 21, 2020
    Date of Patent: November 9, 2021
    Assignee: CORPLEX PLASTICS UK LTD
    Inventor: Ronald E. Kieras
  • Vacuum break twist tap
    Patent number: D947993
    Type: Grant
    Filed: February 21, 2020
    Date of Patent: April 5, 2022
    Assignee: LB EUROPE LIMITED
    Inventor: Ronald E. Kieras
  • Vacuum break twist tap
    Patent number: D948667
    Type: Grant
    Filed: February 21, 2020
    Date of Patent: April 12, 2022
    Assignee: LB EUROPE LIMITED
    Inventor: Ronald E. Kieras
  • Vacuum break twist tap
    Patent number: D958938
    Type: Grant
    Filed: November 2, 2021
    Date of Patent: July 26, 2022
    Assignee: LB EUROPE LIMITED
    Inventors: Ronald E. Kieras, Matthew Ruschmeier
  • Vacuum break twist tap
    Patent number: D958939
    Type: Grant
    Filed: November 2, 2021
    Date of Patent: July 26, 2022
    Assignee: LB EUROPE LIMITED
    Inventors: Ronald E. Kieras, Matthew Ruschmeier
  • Aerator
    Patent number: D963810
    Type: Grant
    Filed: March 19, 2021
    Date of Patent: September 13, 2022
    Assignee: Tasz, Inc.
    Inventor: Chakra V. Gupta
  • Check valve body
    Patent number: D975244
    Type: Grant
    Filed: April 29, 2020
    Date of Patent: January 10, 2023
    Assignee: Hypertherm, Inc.
    Inventors: David Osterhouse, Nathan Quinn
  • Hammerless check valve
    Patent number: D1006961
    Type: Grant
    Filed: October 6, 2020
    Date of Patent: December 5, 2023
    Assignee: DOOQOOM, Corp., LTD.
    Inventor: Sang Heon Lee
  • Filter
    Patent number: D1013098
    Type: Grant
    Filed: August 15, 2022
    Date of Patent: January 30, 2024
    Assignee: BIBOTING INTERNATIONAL CO., LTD.
    Inventors: Shih-Ta Liu, Po-Chang Liu, Pei-En Lee
  • Aerator
    Patent number: D1041615
    Type: Grant
    Filed: November 8, 2021
    Date of Patent: September 10, 2024
    Assignee: TASZ, INC.
    Inventor: Chakra V. Gupta
  • Check valve
    Patent number: D1044679
    Type: Grant
    Filed: March 1, 2022
    Date of Patent: October 1, 2024
    Assignee: Nordson Corporation
    Inventor: Casey Tyler Hebert
  • Check valve
    Patent number: D1057094
    Type: Grant
    Filed: September 7, 2022
    Date of Patent: January 7, 2025
    Inventors: Nobuyuki Ishizaki, Takeshi Ouchi, Eiji Hara