Magnetically separated equilibrium catalyst for specialized cracking
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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May 14, 1996
Issued Date -
N/A
app pub date -
May 10, 1994
filing date -
May 10, 1994
priority date (Note) -
In Force
status (Latency Note)
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Importance

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Non-US Coverage
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Abstract
Disclosed is a method for improving fluid cracking catalyst performance by increasing metal contamination incrementally while cracking two different feedstocks that have different concentrations of metal contaminants. The relative amount of metal contamination is controlled by magnetic separation. The incrementally increased cracking catalyst is used in cracking a second feedstock.
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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ASHLAND OIL INC | P O BOX 391 BL-5 ASHLAND KY 41114 |
International Classification(s)

- 1994 Application Filing Year
- C10G Class
- 218 Applications Filed
- 97 Patents Issued To-Date
- 44.50 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Henton, Lee M | Lavalette, WV | 1 | 2 |
# of filed Patents : 1 Total Citations : 2 |
Cited Art Landscape
- No Cited Art to Display

Patent Citation Ranking
- 2 Citation Count
- C10G Class
- 4.42 % this patent is cited more than
- 29 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 |
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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 07, 2013 | STCH | INFORMATION ON STATUS: PATENT DISCONTINUATION | free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
Dec 09, 2012 | FP | LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE | Effective Date: Dec 09, 2012 |
Dec 09, 2012 | LAPS | LAPSE FOR FAILURE TO PAY MAINTENANCE FEES | |
Jul 23, 2012 | REMI | MAINTENANCE FEE REMINDER MAILED | |
Dec 09, 2008 | I | Issuance | |
Jun 29, 2007 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:WEDOWSKI, MARCO;STIETZ, FRANK;MERTENS, BAS;AND OTHERS;REEL/FRAME:019504/0415;SIGNING DATES FROM 20040831 TO 20041015 Owner name: CARL ZEISS SMT AG, GERMANY |
Aug 31, 2006 | P | Published | |
Mar 14, 2006 | F | Filing | |
Mar 07, 2002 | PD | Priority Date |

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