E21B 43/082
Screens comprising porous materials
Official title: {Screens comprising porous materials, e.g. prepacked screens}
E21B43/082 (Screens comprising porous materials) appears on 223 US grants and 160 published applications in this corpus.
Search patents in E21B- Granted patents
- 223
- Published applications
- 160
- Assignees
- 92
- Inventors
- 400
- Latest grant
- 26 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 4 | 0 |
| 1990 | 4 | 0 |
| 1991 | 5 | 0 |
| 1992 | 9 | 0 |
| 1993 | 4 | 0 |
| 1994 | 11 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 4 | 0 |
| 1998 | 4 | 0 |
| 1999 | 8 | 0 |
| 2000 | 3 | 0 |
| 2001 | 4 | 1 |
| 2002 | 5 | 1 |
| 2003 | 3 | 2 |
| 2004 | 6 | 4 |
| 2005 | 1 | 4 |
| 2006 | 2 | 3 |
| 2007 | 2 | 2 |
| 2008 | 2 | 5 |
| 2009 | 3 | 6 |
| 2010 | 6 | 6 |
| 2011 | 5 | 6 |
| 2012 | 3 | 4 |
| 2013 | 4 | 8 |
| 2014 | 8 | 11 |
| 2015 | 5 | 16 |
| 2016 | 9 | 11 |
| 2017 | 8 | 12 |
| 2018 | 13 | 6 |
| 2019 | 12 | 11 |
| 2020 | 8 | 4 |
| 2021 | 10 | 5 |
| 2022 | 9 | 14 |
| 2023 | 7 | 3 |
| 2024 | 6 | 5 |
| 2025 | 4 | 4 |
| 2026 | 2 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Compositions and methods for use of proppant surface chemistry to improve proppant consolidation and flowback control26 May 2026US 12,637,935 B2Carbo Ceramics Inc.
- Sand screen with a non-woven fiber polymer filter31 Mar 2026US 12,590,513 B2Schlumberger Technology Corporation
- Sand screen, method, and system23 Dec 2025US 12,503,932 B2Baker Hughes Oilfield Operations LLC
- Systems and methods for single trip gravel packing in open hole borehole4 Nov 2025US 12,460,495 B2Schlumberger Technology Corporation
- Modeling diffusion and expulsion of hydrocarbons in kerogen18 Mar 2025US 12,252,973 B2Schlumberger Technology Corporation
- Compositions and methods for use of proppant surface chemistry to improve proppant consolidation and flowback control24 Sep 2026US 2026/0286824 A1Carbo Ceramics Inc.
- Porous polymeric material and filtration device6 Aug 2026US 2026/0226815 A1Baker Hughes Oilfield Operations LLC
- Ultrahigh strain recovery shape memory alloy screen pipe material and preparation method and application thereof23 Jul 2026US 2026/0209897 A1South China University of Technology
- Pack screen and bypass connector configured to connect to pack screen23 Jul 2026US 2026/0210213 A1China Petroleum & Chemical Corporation
- Swellable elastomer sponge for sand management4 Jun 2026US 2026/0153014 A1Schlumberger Technology Corporation
Most cited
By later US patents
- Deformable well screen320US 5,901,789 AShell Oil Company · 1999
- Deformable well screen218US 6,012,522 AShell Oil Company · 2000
- Oil well treatment183US 5,893,416 AAEA Technology plc · 1999
- Coiled tubing screen and method of well completion153US 6,263,972 B1Baker Hughes Incorporated · 2001
- Prepacked screen145US 5,551,513 ATexaco Inc. · 1996