| (84) |
Designated Contracting States: |
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AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
| (30) |
Priority: |
20.09.1999 US 399637 28.08.2000 US 649627
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| (43) |
Date of publication of application: |
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07.08.2002 Bulletin 2002/32 |
| (60) |
Divisional application: |
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10003379.4 |
| (73) |
Proprietors: |
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- W.R. GRACE & CO.-CONN.
New York, NY 10036 (US)
- ExxonMobil Oil Corporation
Fairfax, VA 22037 (US)
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| (72) |
Inventors: |
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- ROBERIE, Terry, G.
Ellicott City, MD 21042 (US)
- KUMAR, Ranjit
Clarksville, MD 21029 (US)
- ZIEBARTH, Michael, S.
Columbia, MD 21044 (US)
- CHENG, Wu-Cheng
Ellicott City, MD 21042 (US)
- ZHAO, Xinjin
Woodbine, MD 21797 (US)
- BHORE, Nazeer
Gaithersburg, MD 20878 (US)
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| (74) |
Representative: UEXKÜLL & STOLBERG |
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Patentanwälte
Beselerstrasse 4 22607 Hamburg 22607 Hamburg (DE) |
| (56) |
References cited: :
GB-A- 2 341 191 US-A- 5 399 327
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US-A- 4 642 177 US-A- 5 618 406
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