DB

Douglas J. Brouwer

KO Kohler: 23 patents #68 of 998Top 7%
Overall (All Time): #167,726 of 4,157,543Top 5%
24
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
12385241 Drain system for bathtub David H. Ritter, Brian S. Core, Keith Scott Ruh, Autumn-Storm Antoinette McFaul 2025-08-12
12259062 Shower system Chad J. Cochart, Jack R. Warning 2025-03-25
12023692 Shower system Todd W. Leonhard, Qi Cheng, Keith Scott Ruh, Chad J. Cochart 2024-07-02
11767930 Shower system Chad J. Cochart 2023-09-26
11725373 Drain system for bathtub David H. Ritter, Brian S. Core, Keith Scott Ruh, Autumn-Storm Antoinette McFaul 2023-08-15
11306846 Shower system Chad J. Cochart 2022-04-19
10072770 Valve body rough-in guide Steven R. Aykens, James Wanasek, Erich D. Slothower, John Wilson, Keegan J. Ford 2018-09-11
9915367 Valve assembly having improved rotational feel David H. Ritter, Chad J. Cochart, Christopher M. Shay, Brian S. Core, Michael Walter Smith 2018-03-13
9874287 Service valve for a valve body Michael Walter Smith, Michael A. Niver, Chad J. Cochart 2018-01-23
9816637 Testing cap for a valve body Michael Walter Smith, Michael A. Niver, Chad J. Cochart 2017-11-14
9657874 Plumbing fitting adapter Michael Walter Smith 2017-05-23
9476508 Valve assembly having improved rotational feel David H. Ritter, Chad J. Cochart, Christopher M. Shay, Brian S. Core, Michael Walter Smith 2016-10-25
9372207 Power sensing transducer Jameson Brouwer, Adam Brouwer 2016-06-21
9334971 Universal valve body Michael Walter Smith, Michael A. Niver, Chad J. Cochart 2016-05-10
9182045 Concentric diverter cartridge Michael A. Niver 2015-11-10
9086155 Valve assembly having improved rotational feel David H. Ritter, Chad J. Cochart, Christopher M. Shay, Brian S. Core, Michael Walter Smith 2015-07-21
9069359 Pressure balance unit Michael A. Niver 2015-06-30
8800962 Valve assembly having improved connections David H. Ritter, Chad J. Cochart, Christopher M. Shay, Brian S. Core, Michael Walter Smith 2014-08-12
8297305 Valve assembly having an improved flow path David H. Ritter, Chad J. Cochart, Christopher M. Shay, Brian S. Core, Michael Walter Smith 2012-10-30
8079381 Handle assembly for a water control valve Keith Fischer, Brian S. Core, David H. Ritter 2011-12-20
5611628 Self-adjusting bearing 1997-03-18
5531524 Self-adjusting bearing 1996-07-02
5402822 Anti-cavitation valve Clarence E. Klessig 1995-04-04
5333327 Apparatus for opening and closing a drain John C. Redding 1994-08-02