(84) |
Designated Contracting States: |
|
CH DE FR GB LI SE |
(30) |
Priority: |
11.09.1992 US 19920943844
|
(71) |
Applicant: CHEVRON RESEARCH AND TECHNOLOGY COMPANY |
|
San Francisco, CA 94120-7141 (US) |
|
(72) |
Inventors: |
|
- CALLIS, Glenn, E.
Walnut Creek, CA 94598 (US)
- SABOURIN, Edward, T.
Novato, CA 94947 (US)
|
(74) |
Representative: Nash, David Allan |
|
Haseltine Lake & Co. Hazlitt House 28 Southampton Buildings Chancery Lane London WC2A 1AT London WC2A 1AT (GB) |
|