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  1. Technology classes
  2. /B · Performing operations
  3. /B01 · Physical or chemical processes or apparatus in general
  4. /B01D · Separation
  5. /B01D 33/00 · Filters with filtering elements which move during the filtering operation
  6. /B01D 33/80 · Accessories
  7. /B01D 33/804 · Integrally combined with devices for controlling the filtration
  8. /B01D 33/809
B01D 33/809

By temperature measuring

Official title: {by temperature measuring}

B01D33/809 (By temperature measuring) appears on 3 US grants and 2 published applications in this corpus.

Search patents in B01D

Where it sits

  1. BPerforming operations
  2. B01Physical or chemical processes or apparatus in general
  3. B01DSeparation
  4. B01D 33/00Filters with filtering elements which move during the filtering operation
  5. B01D 33/80Accessories
  6. B01D 33/804Integrally combined with devices for controlling the filtration
  7. B01D 33/809By temperature measuring
Granted patents
3
Published applications
2
Assignees
3
Inventors
7
Latest grant
27 Sep 2011

Filings by year

Granted patentsPublished applications
B01D 33/809: granted patents and published applications per publication year
YearGranted patentsPublished applications
197710
197800
197900
198000
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198300
198400
198500
198600
198700
198800
198900
199000
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199200
199310
199400
199500
199600
199700
199800
199900
200000
200100
200200
200300
200400
200500
200600
200700
200801
200901
201000
201110

1977198719972011

By publication year. Applications have been published since 2001.

Recent patents

  • Sieve apparatus and method for use of same27 Sep 2011US 8,025,152 B2Virdrill AS
  • Apparatus for removing liquid from the thickeners, filters, and washers13 Jul 1993US 5,227,058 AA. Ahlstrom Corporation
  • Method of using multiple stressed sealing plugs to filter polymeric material1 Mar 1977US 4,010,391 A
  • Automatic oil filtration and treatment with level control and system heating during filtration12 Feb 2009US 2009/0039004 A1Bill Andersen Consulting LLC
  • Sieve Apparatus and Method For Use of Same18 Sep 2008US 2008/0223760 A1Virdrill AS

Most cited

By later US patents
  • Method of using multiple stressed sealing plugs to filter polymeric material6US 4,010,391 A1977
  • Sieve apparatus and method for use of same6US 8,025,152 B2Virdrill AS · 2011
  • Apparatus for removing liquid from the thickeners, filters, and washers1US 5,227,058 AA. Ahlstrom Corporation · 1993

Top assignees

Documents
  • VVirdrill AS2
  • AA. Ahlstrom Corporation1
  • BABill Andersen Consulting LLC1

Often classified with

  • B07BSeparating solids from solids by sieving, screening, sifting or by using gas2
  • B08BCleaning in general2
  • E21BEarth or rock drilling2
  • A47JKitchen equipment1
  • B29CShaping or joining of plastics1

Documents that also carry the other class.

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Search every US patent grant since 1976 and every published application since 2001. Updated weekly from USPTO.

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