David Smith — 44 Patents at Precor Incorporated

David Smith has been granted 44 US patents while listed as an inventor at Precor Incorporated. The first was granted in 1980 and the most recent in March 2022. David Smith ranks #66,838 of 4,157,543 US inventors in our database (top 1.6%). Patent records list David Smith in Glasgow, WA, GB.

Issued Patents All Time

Showing 1–25 of 44 patents

Patent #	Title	Co-Inventors	Date
11286185	System and method of scum collection in wastewater treatment systems	Terence K. Reid	2022-03-29
9776108	Stationary cloth media filtration	Peter G. Baumann, Lloyd W. Johnson, Eugen O. Bergmann	2017-10-03
9592568	Subsea welding apparatus and method	Adam James O'Leary, Nathan Alan Paculba, Kevin Grant Munro, David E. Gibson	2017-03-14
8329045	Stationary cloth media filtration	Peter G. Baumann, Lloyd W. Johnson, Eugen O. Bergmann	2012-12-11
7993532	Method of filtration using cloth media and self-aligning backwash assembly	Peter G. Baumann, Lloyd W. Johnson, Eugen O. Bergmann	2011-08-09
7981290	Backwash assembly having a rotating backwash arm for cleaning cloth filter media	Peter G. Baumann	2011-07-19
7976597	Cyclonic separation apparatus	—	2011-07-12
7955405	Cyclonic separation apparatus	—	2011-06-07
7955406	Cyclonic separation apparatus	—	2011-06-07
7892421	Stationary cloth media filtration and self-aligning backwash assembly	Peter G. Baumann, Lloyd W. Johnson, Eugen O. Bergmann	2011-02-22
7871527	Processes for water and wastewater treatment, including stationary cloth media filtration	Paul Anthony Hughes, Lloyd W. Johnson, Peter G. Baumann	2011-01-18
7833424	Backwash assembly and method having a rotating backwash arm for cleaning cloth filter media	Peter G. Baumann	2010-11-16
7807050	Backwash assembly and method having a rotating backwash arm for cleaning cloth filter media	Peter G. Baumann	2010-10-05
7655058	Cyclonic vacuum cleaner	—	2010-02-02
7441307	Vacuum cleaning head	—	2008-10-28
7338596	Air activated decanter	—	2008-03-04
7083716	Air activated decanter	—	2006-08-01
D515756	Floor tool for a cleaning appliance	Matthew James Roger Allard, Simon Langham, Wen Tong Chong	2006-02-21
D511231	Attachment for cleaning appliance	Simon Nicholad Langham	2005-11-01
6858140	Processes and devices for water and wastewater treatment, including stationary cloth media filtration	Paul Anthony Hughes, Lloyd W. Johnson, Peter G. Baumann	2005-02-22
5888199	Ear cleaning device with a flexion part	Manuel L. Karell	1999-03-30
5870185	Apparatus and method for fluid analysis	Harold J. See, Kenneth D. Turner, Dan L. Cooper, Gary Workman, David Purves +3 more	1999-02-09
D314597	Low impact stair climbing exercise apparatus	Timothy O. Armstrong, John W. Bull	1991-02-12
D304358	Stair climbing exercise apparatus	Timothy O. Armstrong, John W. Bull	1989-10-31
D303695	Skiing exerciser or similar article	Larry J. Graf, Randolph F. Miller	1989-09-26

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David Smith — 44 Patents

Issued Patents All Time

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