Fourphase AS
Os, NO· latest recorded location
Fourphase AS is named on 5 US grants and 6 published applications in this corpus. Its most frequent classification is E21B (Earth or rock drilling).
- Granted patents
- 5
- Published applications
- 6
- Inventors
- 4
- Granted in 2026 so far
- 0
- Most recent grant
- 24 Jun 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2019 | 0 | 2 |
| 2020 | 1 | 2 |
| 2021 | 3 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 2 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
By publication year.
Technology areas
Share of 11 documents
Recent patents
- Treatment of multiphase hydrocarbon-containing fluid in oil and/or gas production24 Jun 2025US 12,337,265 B2
- Solid particle separation in oil and/or gas production5 Oct 2021US 11,136,874 B2
- Solids washing in oil and/or gas production4 May 2021US 10,994,312 B2
- Oil, water, gas and solid particle separation in oil and/or gas production5 Jan 2021US 10,883,353 B2
- Oil, water, gas and solid particle separation in oil and/or gas production30 Jun 2020US 10,697,284 B2
- Appratus for, and Method of, Controlling Sand Production from an Oil Well8 Jun 2023US 2023/0175362 A1
- Treatment of Multiphase Hydrocarbon-Containing Fluid in Oil and/or Gas Production9 Feb 2023US 2023/0040989 A1
- Solids washing in oil and/or gas production15 Oct 2020US 2020/0324323 A1
- Oil, water, gas and solid particle separation in oil and/or gas production1 Oct 2020US 2020/0308948 A1
- Solid Particle Separation in Oil and/or Gas Production13 Jun 2019US 2019/0178071 A1
Most cited
By later US patents