patentgrep
SearchCompaniesTechnologiesAPIPricingDocs
DocsGet an API key
  1. Technology classes
  2. /F · Mechanical engineering
  3. /F01 · Machines or engines in general
  4. /F01B · Machines or engines, in general or of positive-displacement type
  5. /F01B 1/00 · Reciprocating-piston machines or engines characterised by number or relative disposition of cylinders
  6. /F01B 1/06 · Reciprocating-piston machines or engines characterised by number or relative disposition of cylinders
  7. /F01B 1/0641 · Details, component parts specially adapted for such machines
  8. /F01B 1/0668
F01B 1/0668

Supporting and guiding means for the piston

Official title: {Supporting and guiding means for the piston}

F01B1/0668 (Supporting and guiding means for the piston) appears on 9 US grants and 4 published applications in this corpus.

Search patents in F01B

Where it sits

  1. FMechanical engineering
  2. F01Machines or engines in general
  3. F01BMachines or engines, in general or of positive-displacement type
  4. F01B 1/00Reciprocating-piston machines or engines characterised by number or relative disposition of cylinders
  5. F01B 1/06Reciprocating-piston machines or engines characterised by number or relative disposition of cylinders
  6. F01B 1/0641Details, component parts specially adapted for such machines
  7. F01B 1/0668Supporting and guiding means for the piston
Granted patents
9
Published applications
4
Assignees
0
Inventors
10
Latest grant
27 Sep 2016

Filings by year

Granted patentsPublished applications
F01B 1/0668: granted patents and published applications per publication year
YearGranted patentsPublished applications
197730
197800
197900
198010
198100
198200
198300
198400
198500
198600
198700
198800
198920
199000
199100
199210
199300
199410
199500
199600
199700
199800
199900
200000
200100
200200
200300
200400
200500
200600
200700
200801
200900
201000
201100
201200
201301
201400
201500
201610
201701
201800
201900
202000
202101

19771987199720072021

By publication year. Applications have been published since 2001.

Recent patents

  • Rotary cam radial steam engine27 Sep 2016US 9,453,411 B2
  • Hydraulic pumps or motors of the radial cylinder type25 Oct 1994US 5,357,843 A
  • Solid fuel combustion device and a compressor5 May 1992US 5,109,666 A
  • Combustion engine for solid block fuel31 Oct 1989US 4,876,850 A
  • Solid fuel bar combustion device and a compressor7 Mar 1989US 4,809,503 A
  • Zhou engine and power-cam mechanism14 Oct 2021US 2021/0317780 A1
  • Rotary Cam Radial Steam Engine2 Feb 2017US 2017/0030193 A1
  • Rotary cam radial steam engine12 Sep 2013US 2013/0233259 A1
  • Internal-Combustion Engine With Guided Roller Piston Drive29 May 2008US 2008/0121196 A1

Most cited

By later US patents
  • Rotary engine19US 4,003,351 A1977
  • Rotary internal combustion engine18US 4,038,948 A1977
  • Solid fuel combustion device and a compressor6US 5,109,666 A1992
  • Slide faces of piston shoes in radial piston machines4US 4,212,230 A1980
  • Combustion engine for solid block fuel3US 4,876,850 A1989

Often classified with

  • F02BInternal-combustion piston engines11
  • F01LCyclically operating valves for machines or engines6
  • Y02TLow-carbon transport4
  • F02FCylinders, pistons or casings, for combustion engines3
  • F02GHot gas or combustion-product positive-displacement engine plants3
  • F03CPositive-displacement engines driven by liquids3
  • F04BPositive-displacement machines for liquids3
  • F16JPistons3
  • F16CShafts2
  • B64CAeroplanes1

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