E21D 9/0685
Foaming agents
Official title: {Foaming agents}
E21D9/0685 (Foaming agents) appears on 5 US grants and 5 published applications in this corpus.
Search patents in E21D- Granted patents
- 5
- Published applications
- 5
- Assignees
- 11
- Inventors
- 25
- Latest grant
- 11 Jul 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 1 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 1 |
| 2021 | 1 | 1 |
| 2022 | 0 | 0 |
| 2023 | 1 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 0 |
| 2026 | 0 | 1 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Foaming additive with low ecotoxicological impact for soil conditioning in the presence of mechanised excavation11 Jul 2023US 11,697,768 B2Mapei S.P.A.
- Foaming additive for soil conditioning in the presence of mechanised excavation for tunnel construction9 Mar 2021US 10,941,343 B2Mapei S.P.A.
- Method of regulating air-foam stabilizer and method of air-foam drilling work29 Jan 2013US 8,360,690 B2Maguma Co., Ltd.
- Tunnel boring with foamed composition12 Oct 2004US 6,802,673 B1MBT Holding AG
- Material and method for lubricating the metal surfaces of an earth-pressure tunnel boring machine11 Sep 2001US 6,287,052 B1Condat S.A.
- Shield cutterhead for cutting diaphragm wall with steel i-beam29 Jan 2026US 2026/0028910 A1China Railway First Group Urban Track Transport Engineering Co., Ltd.
- Foaming additive with low ecotoxicological impact for soil conditioning in the presence of mechanised excavation2 Sep 2021US 2021/0269718 A1Mapei S.P.A.
- Foaming additive for soil conditioning in the presence of mechanised excavation for tunnel construction27 Aug 2020US 2020/0270522 A1Mapei S.P.A.
- Foam generator for an earth pressure balance shield tunnel boring machine and method for conditioning removed soil material as a supporting medium for an earth pressure balance shield9 Mar 2017US 2017/0067339 A1Mc-Bauchemie MüLler GmbH & Co. KG
- Method of regulating air-foam stabilizer and method of air-foam drilling work21 Oct 2010US 2010/0266347 A1Maguma Co., Ltd.
Most cited
By later US patents