Treatment of sour hydrocarbon distillate
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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May 24, 1988
Issued Date -
N/A
app pub date -
Jul 21, 1986
filing date -
May 30, 1985
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An apparatus and process where a sour hydrocarbon distillate stream is treated in two oxidation zones within the same reaction vessel to oxidize mercaptans. The initial treatment is in the presence of a fiber bundle and the subsequent treatment over a bed of supported oxidation catalyst which can be in an annular arrangement surrounding a portion of the fiber bundle.
First Claim
all claims..Other Claims data not available
Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
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MERICHEM COMPANY | HOUSTON TX 77023 |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Maple, Ralph E | Houston, TX | 3 | 54 |
# of filed Patents : 3 Total Citations : 54 | |||
Suarez, Felipe J | Houston, TX | 3 | 58 |
# of filed Patents : 3 Total Citations : 58 |
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Patent Citation Ranking
- 10 Citation Count
- B01J Class
- 0 % this patent is cited more than
- 37 Age
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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 |
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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 |
Full Text

Legal Events
Date | Code | Event | Description |
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Jan 30, 2018 | STCH | INFORMATION ON STATUS: PATENT DISCONTINUATION | free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
May 02, 2001 | FP | LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE | Effective Date: May 02, 2001 |
Apr 29, 2001 | LAPS | LAPSE FOR FAILURE TO PAY MAINTENANCE FEES | |
Nov 21, 2000 | REMI | MAINTENANCE FEE REMINDER MAILED | |
Mar 30, 1999 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:ALTEN, KURT;REEL/FRAME:009901/0752 Owner name: ALTEN GERATEBAU GMBH, GERMANY Effective Date: Mar 30, 1999 |
Sep 30, 1996 | FPAY | FEE PAYMENT | year of fee payment: 8 |
Nov 02, 1992 | FPAY | FEE PAYMENT | year of fee payment: 4 |
Nov 02, 1991 | FEPP | FEE PAYMENT PROCEDURE | free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY |
May 02, 1989 | I | Issuance | |
Aug 27, 1987 | F | Filing | |
Aug 30, 1986 | PD | Priority Date |

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