patentgrep
SearchCompaniesTechnologiesAPIPricingDocs
DocsGet an API key
  1. Technology classes
  2. /H · Electricity
  3. /H02 · Generation
  4. /H02P · Control or regulation of electric motors, electric generators or dynamo-electric converters
  5. /H02P 25/00 · Arrangements or methods for the control of ac motors characterised by the
  6. /H02P 25/02 · Arrangements or methods for the control of ac motors characterised by the
  7. /H02P 25/10 · Commutator motors
  8. /H02P 25/105
H02P 25/105

Four quadrant control

Official title: {Four quadrant control}

H02P25/105 (Four quadrant control) appears on 3 US grants and 3 published applications in this corpus.

Search patents in H02P

Where it sits

  1. HElectricity
  2. H02Generation
  3. H02PControl or regulation of electric motors, electric generators or dynamo-electric converters
  4. H02P 25/00Arrangements or methods for the control of ac motors characterised by the
  5. H02P 25/02Arrangements or methods for the control of ac motors characterised by the
  6. H02P 25/10Commutator motors
  7. H02P 25/105Four quadrant control
Granted patents
3
Published applications
3
Assignees
2
Inventors
5
Latest grant
27 Aug 2013

Filings by year

Granted patentsPublished applications
H02P 25/105: granted patents and published applications per publication year
YearGranted patentsPublished applications
200611
200700
200800
200900
201000
201101
201211
201310

20062007200820092010201120122013

By publication year.

Recent patents

  • DC bus boost method and system for regenerative brake27 Aug 2013US 8,519,655 B2Rockwell Automation Technologies, Inc.
  • DC bus boost method and system for regenerative brake29 May 2012US 8,188,693 B2Rockwell Automation Technologies, Inc.
  • Power supplying apparatus and power supplying method7 Nov 2006US 7,132,810 B2Fujitsu Limited
  • Dc bus boost method and system for regenerative brake20 Sep 2012US 2012/0235607 A1Rockwell Automation Technologies, Inc.
  • Dc bus boost method and system for regenerative brake5 May 2011US 2011/0101897 A1Rockwell Automation Technologies, Inc.
  • Power supplying apparatus and power supplying method28 Sep 2006US 2006/0214613 A1Fujitsu Limited

Most cited

By later US patents
  • DC bus boost method and system for regenerative brake14US 8,188,693 B2Rockwell Automation Technologies, Inc. · 2012
  • Power supplying apparatus and power supplying method1US 7,132,810 B2Fujitsu Limited · 2006

Top assignees

Documents
  • RARockwell Automation Technologies, Inc.4
  • Fujitsu Limited2

Often classified with

  • B60LElectric vehicle propulsion4
  • H02MApparatus for conversion between ac and ac, between ac and dc, or4
  • Y02TLow-carbon transport4

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