EP1925695A3
Oxygen gas diffusion cathode for sodium chloride electrolysis
Abstract
The present invention provides an oxygen gas diffusion cathode for sodium chloride electrolysis comprising: a porous conductive substrate comprising silver, a hydrophobic material and a carbon material; a catalyst comprising silver and palladium, coated on the porous conductive substrate.
Term
1.1 yearsto projected expiry
Projected expiry 15 November 2027, counted from filing; an application has no term until it is granted.
- Priority and filed
- Published
- Today
- Projected expiry
1 sheet
Sheet 1
Every citation, both ways
| Document | Relation | Office | Category | Cited during | Relevant claims |
|---|---|---|---|---|---|
| WO0193999A2 | Cites | World Intellectual Property Organization (WIPO) | A | Search report | 1 |
| WO2004027901A2 | Cites | World Intellectual Property Organization (WIPO) | A | Search report | 1 |
| US6117286A | Cites | United States of America | A | Search report | 1 |
15 members in 6 offices; this record represents the family
Members15
| Document | Office | Kind | |
|---|---|---|---|
| US2008116063A1 | United States of America | A1 | |
| KR20080046103A | Republic of Korea | A | |
| KR20080046103A | Republic of Korea | A | |
| EP1925695A2 | European Patent Office (EPO) | A2 | |
| JP2008127631A | Japan | A | |
| TW200829724A | Taiwan Province of China | A | |
| CN101240426A | China | A | |
| EP1925695A3This record | European Patent Office (EPO) | A3 | |
| US7914652B2 | United States of America | B2 | |
| KR101081468B1 | Republic of Korea | B1 | |
| KR101081468B1 | Republic of Korea | B1 | |
| CN101240426B | China | B | |
| JP5031336B2 | Japan | B2 | |
| TWI424093B | Taiwan Province of China | B | |
| EP1925695B1 | European Patent Office (EPO) | B1 |
27 legal events, as 2 offices reported them to INPADOC
Over the term
Point at a mark for the eventEvents
| Event | Code | Office | |
|---|---|---|---|
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal feeWithdrawnR119 | R119 | DE | |
| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | EP | |
| No opposition filedOpposition26N | 26N | EP | |
| No opposition filed within time limitOppositionORIGINAL CODE: 0009261PLBE | PLBE | EP | |
| Information on the status of an ep patent application or granted ep patentGrantedSTATUS: NO OPPOSITION FILED WITHIN TIME LIMITSTAA | STAA | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| No opposition filed against granted patent, or epo opposition proceedings concluded without decisionGrantedR097 | R097 | DE | |
| Dpma publication of mentioned ep patent grantGrantedR096 | R096 | DE | |
| Designated contracting statesAK | AK | EP | |
| Party data changed (applicant data changed or rights of an application transferred)RAP1 | RAP1 | EP | |
| Information on inventor provided before grant (corrected)RIN1 | RIN1 | EP | |
| Information on inventor provided before grant (corrected)RIN1 | RIN1 | EP | |
| Information on inventor provided before grant (corrected)RIN1 | RIN1 | EP | |
| (expected) grantORIGINAL CODE: 0009210GRAA | GRAA | EP | |
| Grant fee paidORIGINAL CODE: EPIDOSNIGR3GRAS | GRAS | EP | |
| Intention to grant announcedINTG | INTG | EP | |
| Despatch of communication of intention to grant a patentORIGINAL CODE: EPIDOSNIGR1GRAP | GRAP | EP | |
| First examination report despatched17Q | 17Q | EP | |
| Designation fees paidAKX | AKX | EP | |
| Request for examination filed17P | 17P | EP | |
| Designated contracting statesAK | AK | EP | |
| Request for extension of the european patentAX | AX | EP | |
| Search report despatchedORIGINAL CODE: 0009013PUAL | PUAL | EP | |
| Designated contracting statesAK | AK | EP | |
| Request for extension of the european patentAX | AX | EP | |
| Public reference made under article 153(3) epc to a published international application that has entered the european phaseORIGINAL CODE: 0009012PUAI | PUAI | EP |
Numbers
- Publication
- 1925695
- Application
- 70222203
Titles3
- German
- Sauerstoffgasdiffusionskathode für Natriumchlorid-Elektrolyse
- English
- Oxygen gas diffusion cathode for sodium chloride electrolysis
- French
- Cathode de diffusion d'oxygène gazeux pour l'électrolyse du chlorure de sodium
Classification
- CPC, 4
- C25B11/043
- C25B11/031
- C25B11/097
- C25B11/032
- IPC, 3
- C25B11 03
- C25B11 04
- C25B11 12
Designated states37
- Contracting states, 32
- Austria
- Belgium
- Bulgaria
- Switzerland
- Cyprus
- Czechia
- Germany
- Denmark
- Estonia
- Spain
- Finland
- France
- United Kingdom
- Greece
- Hungary
- Ireland
- Iceland
- Italy
- Liechtenstein
- Lithuania
- Luxembourg
- Latvia
- Monaco
- Malta
and 8 moreShow fewer
- Netherlands (Kingdom of the)
- Poland
- Portugal
- Romania
- Sweden
- Slovenia
- Slovakia
- Türkiye
- Extension states, 5
- Albania
- Bosnia and Herzegovina
- Croatia
- North Macedonia
- Serbia