Boehmitic aluminas and high-temperature stable, high-porosity, pure-phase aluminium oxides obtained therefrom
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Apr 9, 2013
Grant Date -
Dec 11, 2008
app pub date -
Aug 13, 2008
filing date -
Aug 14, 1998
priority date (Note) -
In Force
status (Latency Note)
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Abstract
This invention relates to crystalline boehmitic aluminas the crystallites of which exhibit unusual dimensional differences in the space directions 020 and 120. This invention further relates to a method for preparing such aluminas and the follow-up products obtained therefrom by calcination.
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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SASOL GERMANY GMBH | 20537 HAMBURG |
International Classification(s)

- 2008 Application Filing Year
- C01F Class
- 141 Applications Filed
- 62 Patents Issued To-Date
- 43.98 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Bohnen, Frank Michael | Brunsbüttel, DE | 4 | 28 |
# of filed Patents : 4 Total Citations : 28 | |||
Glöckler, Reiner | Brunsbüttel, DE | 4 | 12 |
# of filed Patents : 4 Total Citations : 12 | |||
Juhl, Jens | Itzehoe, DE | 4 | 28 |
# of filed Patents : 4 Total Citations : 28 | |||
Meyer, Arnold | St. Michaelisdonn, DE | 14 | 156 |
# of filed Patents : 14 Total Citations : 156 | |||
Noweck, Klaus | Brunsbüttel, DE | 15 | 197 |
# of filed Patents : 15 Total Citations : 197 | |||
Schimanski, Jürgen | Brunsbüttel, DE | 1 | 0 |
# of filed Patents : 1 Total Citations : 0 |
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Patent Citation Ranking
- 0 Citation Count
- C01F Class
- 0 % this patent is cited more than
- 12 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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Mar 07, 2012 | FPAY | FEE PAYMENT | year of fee payment: 12 |
Mar 10, 2008 | FPAY | FEE PAYMENT | year of fee payment: 8 |
May 20, 2004 | FPAY | FEE PAYMENT | year of fee payment: 4 |
May 20, 2004 | SULP | SURCHARGE FOR LATE PAYMENT | |
Apr 07, 2004 | REMI | MAINTENANCE FEE REMINDER MAILED | |
Dec 06, 2003 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:NELGO MFG. CORPORATION;REEL/FRAME:014852/0749 Owner name: BOSS PRODUCTS, INC., INDIANA Effective Date: Dec 06, 2003 |
Sep 19, 2000 | I | Issuance | |
Sep 01, 2000 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Feb 07, 2000 | AS | ASSIGNMENT | free format text: (ASSIGNMENT OF ASSIGNOR'S INTEREST) RE-RECORD TO CORRECT THE NUMBER OF MICROFILM PAGES FROM 8 TO 2 AT REEL 10631, FRAME 0803.;ASSIGNOR:GONGWER, TROY W.;REEL/FRAME:010661/0442 Owner name: NELGO MANUFACTURING, INDIANA Effective Date: Feb 07, 2000 free format text: ;ASSIGNOR:GONGWER, TROY W.;REEL/FRAME:010631/0803 Owner name: NEIGO MANUFACTURING, INDIANA Effective Date: Feb 07, 2000 |
Aug 31, 1999 | F | Filing | |
Aug 31, 1999 | PD | Priority Date |

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