Condenser-reboiler system and method

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 10012439
SERIAL NO

15285557

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

A system and method for the concurrent condensation of a nitrogen-rich vapor and vaporization of an oxygen-rich liquid in a distillation column based air separation unit is provided. The disclosed system includes a condenser-reboiler heat exchanger located between a lower pressure column and a higher pressure column and configured to condense a nitrogen-rich vapor from the higher pressure column and partially vaporize an oxygen-rich liquid from the lower pressure column. Within the condenser-reboiler heat exchanger, the nitrogen-rich vapor flows in an upward direction such that any non-condensables present in the nitrogen-rich vapor will accumulate proximate the upper portion or top of the condenser-reboiler modules where they can be easily removed through venting.

First Claim

See full text

Other Claims data not available

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
PRAXAIR TECHNOLOGY INC10 RIVERVIEW DR DANBURY CT 06810

International Classification(s)

loading....
  • 2016 Application Filing Year
  • F25J Class
  • 228 Applications Filed
  • 141 Patents Issued To-Date
  • 61.85 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances2016201720182019202020212022202320240255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chakravarthy, Vijayaraghavan S Williamsville, US 11 10
Kwark, Sang Muk Williamsville, US 8 28
Shelat, Maulik R Williamsville, US 36 67

Cited Art Landscape

Load Citation

Patent Citation Ranking

  • 1 Citation Count
  • F25J Class
  • 31.08 % this patent is cited more than
  • 7 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges2350101 - 1011 - 2002.557.51012.51517.52022.52527.53032.53537.54042.54547.55052.5

Forward Cite Landscape

Load Citation

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
7.5 Year Payment $3600.00 $1800.00 $900.00 Jan 3, 2026
11.5 Year Payment $7400.00 $3700.00 $1850.00 Jan 3, 2030