patentgrep
SearchCompaniesTechnologiesAPIPricingDocs
DocsGet an API key
  1. Technology classes
  2. /B · Performing operations
  3. /B01 · Physical or chemical processes or apparatus in general
  4. /B01D · Separation
  5. /B01D 29/00 · Filters with filtering elements stationary during filtration
  6. /B01D 29/76 · Handling the filter cake in the filter for purposes other than for
  7. /B01D 29/80 · For drying
  8. /B01D 29/84 · By gases or by heating
  9. /B01D 29/846
B01D 29/846

By indirect heat-exchange

Official title: {by indirect heat-exchange}

B01D29/846 (By indirect heat-exchange) appears on 49 US grants and 0 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 29/00Filters with filtering elements stationary during filtration
  5. B01D 29/76Handling the filter cake in the filter for purposes other than for
  6. B01D 29/80For drying
  7. B01D 29/84By gases or by heating
  8. B01D 29/846By indirect heat-exchange
Granted patents
49
Published applications
0
Assignees
28
Inventors
83
Latest grant
1 Jun 1999

Filings by year

Granted patentsPublished applications
B01D 29/846: granted patents and published applications per publication year
YearGranted patentsPublished applications
197610
197720
197800
197900
198000
198100
198200
198300
198410
198510
198630
198720
198820
198920
199030
199150
199220
199340
199410
199520
199650
199770
199830
199930

197619861999

By publication year. Applications have been published since 2001.

Recent patents

  • Grease caddie1 Jun 1999US 5,908,551 AOnken's LLC
  • Fuel filter element18 May 1999US 5,904,844 AParker Intangibles LLC
  • Fuel filter and water separator apparatus with heater5 Jan 1999US 5,855,772 AFleetguard, Inc.
  • Filter for high-viscosity fluids10 Nov 1998US 5,833,848 AGeneral Electric Company
  • Horizontal cross flow filtration and rinsing of ice from saline slurries6 Oct 1998US 5,816,057 AThe United States of America as represented by the Secretary of Agriculture

No published applications in this class yet.

Most cited

By later US patents
  • Reversible filter element87US 5,645,718 AParker-Hannifin Corporation · 1997
  • Fuel filter and cartridge assembly70US 5,017,285 AStanadyne Automotive Corp. · 1991
  • Fuel filter67US 5,084,170 AStanadyne Automotive Corp. · 1992
  • Liquid filter60US 5,520,801 AFilterwerk Mann & Hummel GmbH · 1996
  • Semipermeable baffle fuel filter58US 4,668,393 AParker-Hannifin Corporation · 1987

Top assignees

Documents
  • Parker-Hannifin Corporation10
  • SAStanadyne Automotive Corp.3
  • ZZimmer, Inc.2
  • AASKA CORPORATION Co., Ltd.1
  • BBASF SE1
  • Bayer Aktiengesellschaft1
  • CChemap AG1
  • Corning Incorporated1
  • DCD & C Limited1
  • DPDaiichi Pharmaceutical Co., Ltd.1

Often classified with

  • F02MSupplying combustion engines in general with combustible mixtures or constituents thereof15
  • F02BInternal-combustion piston engines11
  • B29CShaping or joining of plastics8
  • Y02TLow-carbon transport8
  • Y10TTechnical subjects covered by former us classification4
  • B29BPreparation or pretreatment of the material to be shaped2
  • Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests2
  • A47JKitchen equipment1
  • A61KMedicines and medical preparations1
  • B01JChemical or physical processes1

Documents that also carry the other class.

patentgrep

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

Product

  • Search
  • New this week
  • Where the data comes from
  • Pricing

Browse

  • Companies
  • Technology classes

Developers

  • API docs
  • PatentsView-compatible API
  • MCP server
  • Changelog

About

  • Privacy
  • Terms
© 2026 patentgrepData from USPTO bulk files