T 0444/91 (Zirconia porcelain/NGK INSULATORS) of 18.07.1997
- European Case Law Identifier
- ECLI:EP:BA:1997:T044491.19970718
- Date of decision
- 18 July 1997
- Case number
- T 0444/91
- Petition for review of
- -
- Application number
- 84305453.7
- IPC class
- C04B 35/48
- Language of proceedings
- English
- Distribution
- Distributed to board chairmen (C)
- Download
- Decision in English
- OJ versions
- No OJ links found
- Other decisions for this case
- -
- Abstracts for this decision
- -
- Application title
- Zirconia porcelain and method of manufacturing the same
- Applicant name
- NGK INSULATORS, LTD.
- Opponent name
- Stora Publication Paper AG Patentabteilung
- Board
- 3.3.02
- Headnote
- -
- Relevant legal provisions
- European Patent Convention Art 123(2) 1973European Patent Convention Art 123(3) 1973European Patent Convention Art 54 1973European Patent Convention Art 56 1973European Patent Convention Art 83 1973
- Keywords
- Inventive step - yes - no reason to select particular points in a phase diagram of a ternary system
- Catchword
- -
- Cited cases
- T 0014/83
- Citing cases
- -
ORDER
For these reasons it is decided that:
1. The appeal is dismissed.
2. The decision under appeal is set aside.
3. The case is remitted to the first instance with the order to maintain the patent on the basis of claims 1 to 5 filed with the letter of 19 March 1997 and a description to be adapted.