patentgrep
SearchCompaniesTechnologiesAPIPricingDocs
DocsGet an API key
  1. Technology classes
  2. /B · Performing operations
  3. /B29 · Working of plastics
  4. /B29C · Shaping or joining of plastics
  5. /B29C 44/00 · Shaping by internal pressure generated in the material
  6. /B29C 44/02 · Shaping by internal pressure generated in the material: for articles of definite
  7. /B29C 44/04 · Consisting of at least two parts of chemically or physically different materials
  8. /B29C 44/0423 · By density separation
  9. /B29C 44/0438
B29C 44/0438

Using flotation

Official title: {using flotation}

B29C44/0438 (Using flotation) appears on 1 US grants and 1 published applications in this corpus.

Search patents in B29C

Where it sits

  1. BPerforming operations
  2. B29Working of plastics
  3. B29CShaping or joining of plastics
  4. B29C 44/00Shaping by internal pressure generated in the material
  5. B29C 44/02Shaping by internal pressure generated in the material: for articles of definite
  6. B29C 44/04Consisting of at least two parts of chemically or physically different materials
  7. B29C 44/0423By density separation
  8. B29C 44/0438Using flotation
Granted patents
1
Published applications
1
Assignees
2
Inventors
2
Latest grant
5 Sep 2017

Filings by year

Granted patentsPublished applications
B29C 44/0438: granted patents and published applications per publication year
YearGranted patentsPublished applications
201201
201300
201400
201500
201600
201710

201220132014201520162017

By publication year.

Recent patents

  • Optical element, light-emitting device, lighting device, and method for manufacturing optical element5 Sep 2017US 9,751,267 B2Semiconductor Energy Laboratory Co.Ltd.
  • Optical Element, Light-Emitting Device, Lighting Device, and Method for Manufacturing Optical Element16 Aug 2012US 2012/0206923 A1Semiconductor Energy Laboratory Co., Ltd.

Most cited

By later US patents
  • Optical element, light-emitting device, lighting device, and method for manufacturing optical element5US 9,751,267 B2Semiconductor Energy Laboratory Co.Ltd. · 2017

Top assignees

Documents
  • SESemiconductor Energy Laboratory Co., Ltd.1
  • SESemiconductor Energy Laboratory Co.Ltd.1

Often classified with

  • B29DProducing particular articles from plastics or from substances in a plastic state2
  • G02BOptical elements, systems or apparatus2
  • H10KOrganic electric solid-state devices2

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