Gas flow control device

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 7086417
APP PUB NO 20010025651A1
SERIAL NO

08859353

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

Invention is of an improvement to seat of gate valves used for gas-lift producing oil wells, consisting of a seat lower part of which is curved there being a straight vertical art and a sloping straight lower part, central spacing consisting of a first part in the shape of a tapered nozzle at which gas is gradually speeded up, a second part which is the main restriction to flow, and a third part in the shape of a conical diffuser at which gas is gradually slowed down.

First Claim

See full text

Other Claims data not available

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
PETROLEO BRASILEIRO S A - PETROBRASRIO DE JANEIRO

International Classification(s)

loading....
  • 1997 Application Filing Year
  • F04F Class
  • 38 Applications Filed
  • 13 Patents Issued To-Date
  • 34.22 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances19971998199920002001200220032004200520060255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
De, Almeida Alcino Resende Rio de Janeiro, BR 12 108

Cited Art Landscape

Load Citation

Patent Citation Ranking

  • 9 Citation Count
  • F04F Class
  • 4.35 % this patent is cited more than
  • 19 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges11542101 - 1011 - 2021 - 3051 - 60012345678910111213141516

Forward Cite Landscape

Load Citation