Sem Stone
Paris, FR· latest recorded location
Sem Stone is named on 2 US grants and 2 published applications in this corpus. Its most frequent classification is C02F (Treatment of water, waste water, sewage, or sludge).
- Granted patents
- 2
- Published applications
- 2
- Inventors
- 2
- Granted in 2026 so far
- 0
- Most recent grant
- 2 Mar 2010
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2007 | 0 | 2 |
| 2008 | 0 | 0 |
| 2009 | 1 | 0 |
| 2010 | 1 | 0 |
By publication year.
Technology areas
Share of 4 documents
- C02FTreatment of water, waste water, sewage, or sludge4
- B01JChemical or physical processes2
- C05FOrganic fertilisers not covered by subclasses c05b, c05c2
- C09KMaterials for miscellaneous applications, not provided for elsewhere2
- Y02ATechnologies for adaptation to climate change2
- Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests2
Recent patents
Most cited
By later US patents
None of its patents has been cited by a later US patent yet.