A61L 31/146
Porous materials
Official title: {Porous materials, e.g. foams or sponges}
A61L31/146 (Porous materials) appears on 938 US grants and 1,554 published applications in this corpus.
Search patents in A61L- Granted patents
- 938
- Published applications
- 1,554
- Assignees
- 599
- Inventors
- 2,425
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 10 | 0 |
| 1998 | 15 | 0 |
| 1999 | 14 | 0 |
| 2000 | 6 | 0 |
| 2001 | 14 | 5 |
| 2002 | 11 | 28 |
| 2003 | 12 | 22 |
| 2004 | 16 | 39 |
| 2005 | 4 | 47 |
| 2006 | 8 | 52 |
| 2007 | 16 | 68 |
| 2008 | 12 | 69 |
| 2009 | 18 | 64 |
| 2010 | 28 | 51 |
| 2011 | 37 | 49 |
| 2012 | 30 | 46 |
| 2013 | 33 | 56 |
| 2014 | 36 | 85 |
| 2015 | 40 | 84 |
| 2016 | 52 | 86 |
| 2017 | 53 | 69 |
| 2018 | 51 | 85 |
| 2019 | 67 | 82 |
| 2020 | 63 | 97 |
| 2021 | 62 | 73 |
| 2022 | 40 | 85 |
| 2023 | 42 | 53 |
| 2024 | 53 | 79 |
| 2025 | 53 | 44 |
| 2026 | 26 | 36 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Generating endothelial cell-seeded vascular grafts22 Sep 2026US 12,741,060 B2Wisconsin Alumni Research Foundation
- Specialty fibrin product18 Aug 2026US 12,708,701 B2Fibrin, LLC
- Resorbable complex shape memory poly(propylene fumarate) star scaffolds for 4D printing applications11 Aug 2026US 12,702,729 B2The University of Akron
- Rotational spun material covered medical appliances and methods of manufacture28 Jul 2026US 12,691,671 B2Merit Medical Systems, Inc.
- Rotational spun material covered medical appliances and methods of manufacture28 Jul 2026US 12,691,672 B2Merit Medical Systems, Inc.
- Prosthetic Surgical Sling8 Oct 2026US 2026/0306237 A1
- Method for fabrication of additively manufactured, self-gelling structures and their use17 Sep 2026US 2026/0273146 A1Dimension Inx Corp
- Multi-layer electrospun micro/nanofibrous membranes based on marine sulfated polysaccharides for periodontal tissue/bone regeneration10 Sep 2026US 2026/0263663 A1National and Kapodistrian University of Athens
- Fluid collection devices, systems, and methods27 Aug 2026US 2026/0248637 A1Purewick Corporation
- Multi-Layered Graft for Tissue Engineering Applications27 Aug 2026US 2026/0248984 A1Ri.MED Foundation
Most cited
By later US patents
- Surgical bettress and surgical stapling apparatus2,317US 6,273,897 B1Ethicon, Inc. · 2001
- Porous tissue scaffoldings for the repair of regeneration of tissue1,754US 6,333,029 B1Ethicon, Inc. · 2001
- Multi-layered implant1,554US 5,686,090 AEthicon, Inc. · 1997
- Foam composite for the repair or regeneration of tissue1,549US 6,306,424 B1Ethicon, Inc. · 2001
- Process for manufacturing biomedical foams1,536US 6,355,699 B1Ethicon, Inc. · 2002