G01N 2203/0256
Triaxial, i.e. the forces being applied along three normal axes of the
Official title: Triaxial, i.e. the forces being applied along three normal axes of the specimen
G01N2203/0256 (Triaxial, i.e. the forces being applied along three normal axes of the) appears on 158 US grants and 122 published applications in this corpus.
Search patents in G01N- Granted patents
- 158
- Published applications
- 122
- Assignees
- 100
- Inventors
- 565
- Latest grant
- 2 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 4 | 0 |
| 1995 | 3 | 0 |
| 1996 | 4 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 4 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 2 |
| 2002 | 1 | 1 |
| 2003 | 5 | 1 |
| 2004 | 4 | 4 |
| 2005 | 3 | 3 |
| 2006 | 5 | 1 |
| 2007 | 3 | 8 |
| 2008 | 1 | 4 |
| 2009 | 2 | 0 |
| 2010 | 4 | 1 |
| 2011 | 2 | 3 |
| 2012 | 1 | 0 |
| 2013 | 1 | 0 |
| 2014 | 1 | 1 |
| 2015 | 1 | 4 |
| 2016 | 2 | 1 |
| 2017 | 1 | 1 |
| 2018 | 0 | 2 |
| 2019 | 3 | 12 |
| 2020 | 8 | 9 |
| 2021 | 13 | 20 |
| 2022 | 15 | 14 |
| 2023 | 18 | 13 |
| 2024 | 13 | 10 |
| 2025 | 19 | 3 |
| 2026 | 3 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Dual-direction synchronous loading method for true-triaxial test apparatus2 Jun 2026US 12,644,807 B2Northeastern University
- Rock tensile damage testing system coupled with complex loading condition17 Feb 2026US 12,553,807 B2Sichuan University
- Collaborative testing system for elastic wave and tensile damage of rock13 Jan 2026US 12,523,584 B2Sichuan University
- Continuous logging method and device16 Dec 2025US 12,498,307 B2China University of Petroleum-Beijing
- Apparatus and method for applying tensile force to samples4 Nov 2025US 12,460,998 B2The Board of Regents of the University of Oklahoma
- Temperature control device for triaxial loading experiment and method thereof, and triaxial loading experiment device1 Oct 2026US 2026/0298785 A1Jilin University
- Triaxial stress simulation method for water storage roadways in abandoned mine pumped storage20 Aug 2026US 2026/0243166 A1Guizhou University
- Sample box loading and unloading storage trolley of rock true-triaxial test instrument18 Jun 2026US 2026/0168899 A1Northeastern University
- Test method for quantitatively studying stress wave propagation law of porous rock5 Mar 2026US 2026/0063525 A1Shenzhen University
- In-situ imaging and characterization of hydraulic fracture development21 Aug 2025US 2025/0264420 A1Saudi Arabian Oil Company
Most cited
By later US patents
- Core sample test method and apparatus67US 5,325,723 AHalliburton Company · 1994
- End-cap-to-piston coupling for triaxial test apparatus52US 5,435,187 AExxon Production Research Company · 1995
- Method, system and device for testing two-phase compressible compositions having gas under pressure49US 5,869,750 AHalliburton Energy Services.Inc. · 1999
- Cell for the triaxial stress testing of a rock sample and a testing method using such a cell31US 5,025,668 AInstitut Francais du Petrole · 1991
- Microaccumulator for measurement of fluid volume changes under pressure31US 5,159,828 AExxon Production Research Company · 1992