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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 2323/00 · Details relating to membrane preparation
  6. /B01D 2323/15 · Use of additives
  7. /B01D 2323/218 · Additive materials
  8. /B01D 2323/2182 · Organic additives
  9. /B01D 2323/21821
B01D 2323/21821

Alkanes

B01D2323/21821 (Alkanes) appears on 2 US grants and 3 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 2323/00Details relating to membrane preparation
  5. B01D 2323/15Use of additives
  6. B01D 2323/218Additive materials
  7. B01D 2323/2182Organic additives
  8. B01D 2323/21821Alkanes
Granted patents
2
Published applications
3
Assignees
3
Inventors
11
Latest grant
8 Feb 2022

Filings by year

Granted patentsPublished applications
B01D 2323/21821: granted patents and published applications per publication year
YearGranted patentsPublished applications
201501
201600
201700
201801
201900
202001
202110
202210

20152016201720182019202020212022

By publication year.

Recent patents

  • Method for manufacturing gas separation membrane and gas separation membrane manufactured thereby8 Feb 2022US 11,241,659 B2LG Chem.Ltd.
  • Composite semipermeable membrane and method for producing composite semipermeable membrane17 Aug 2021US 11,090,613 B2Toray Industries, Inc.
  • Method for manufacturing gas separation membrane and gas separation membrane manufactured thereby30 Jul 2020US 2020/0238219 A1LG Chem.Ltd.
  • Composite semipermeable membrane and method for producing composite semipermeable membrane27 Dec 2018US 2018/0369758 A1Toray Industries, Inc.
  • Polymer resin composition for preparing hollow fiber membrane, preparation method of hollow fiber membrane, and hollow fiber membrane28 May 2015US 2015/0144551 A1Lotte Chemical Corporation

Most cited

By later US patents

No patent in this class has been cited by a later US patent yet.

Top assignees

Documents
  • LG Chem.Ltd.2
  • Toray Industries, Inc.2
  • Lotte Chemical Corporation1

Often classified with

  • C02FTreatment of water, waste water, sewage, or sludge2
  • Y02ATechnologies for adaptation to climate change2
  • Y02CCapture, storage, sequestration or disposal of greenhouse gases [ghg]2

Documents that also carry the other class.

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