VERTICAL COMBINED FEED/EFFLUENT HEAT EXCHANGER WITH VARIABLE BAFFLE ANGLE
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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N/A
Issued Date -
Dec 10, 2009
app pub date -
Jun 5, 2008
filing date -
Jun 5, 2008
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A shell and tube heat exchanger, such as a vertical combined feed/effluent heat exchanger (VCFE), including: a shell having a fluid inlet and a fluid outlet; a plurality of baffles mounted in the shell to guide the fluid into a helical flow pattern through the shell; wherein a helix angle α of a baffle proximate the inlet is different than a helix angle β of a baffle proximate the outlet.
First Claim
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Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
LUMMUS TECHNOLOGY INC | 1515 BROAD STREET BLOOMFIELD NJ 07003 |
International Classification(s)

- 2008 Application Filing Year
- F28F Class
- 475 Applications Filed
- 224 Patents Issued To-Date
- 47.16 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Chunangad, Krishnan S | Landing , US | 2 | 38 |
# of filed Patents : 2 Total Citations : 38 | |||
Karrs, Mark S | Lincoln Park , US | 1 | 14 |
# of filed Patents : 1 Total Citations : 14 | |||
Master, Bashir I | Wayne , US | 6 | 116 |
# of filed Patents : 6 Total Citations : 116 |
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Patent Citation Ranking
- 14 Citation Count
- F28F Class
- 62.36 % this patent is cited more than
- 16 Age
Forward Cite Landscape
- No Forward Cites to Display

Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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