A61L 27/50
Materials characterised by their function or physical properties
Official title: Materials characterised by their function or physical properties {, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials}
A61L27/50 (Materials characterised by their function or physical properties) appears on 11,461 US grants and 17,765 published applications in this corpus.
Search patents in A61L- Granted patents
- 11,461
- Published applications
- 17,765
- Assignees
- 5,175
- Inventors
- 25,392
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 6 | 0 |
| 1978 | 8 | 0 |
| 1979 | 6 | 0 |
| 1980 | 10 | 0 |
| 1981 | 14 | 0 |
| 1982 | 13 | 0 |
| 1983 | 10 | 0 |
| 1984 | 9 | 0 |
| 1985 | 16 | 0 |
| 1986 | 27 | 0 |
| 1987 | 52 | 0 |
| 1988 | 38 | 0 |
| 1989 | 64 | 0 |
| 1990 | 66 | 0 |
| 1991 | 72 | 0 |
| 1992 | 66 | 0 |
| 1993 | 70 | 0 |
| 1994 | 92 | 0 |
| 1995 | 70 | 0 |
| 1996 | 97 | 0 |
| 1997 | 144 | 0 |
| 1998 | 178 | 0 |
| 1999 | 146 | 0 |
| 2000 | 135 | 0 |
| 2001 | 135 | 72 |
| 2002 | 138 | 236 |
| 2003 | 174 | 357 |
| 2004 | 154 | 429 |
| 2005 | 139 | 520 |
| 2006 | 150 | 480 |
| 2007 | 146 | 551 |
| 2008 | 120 | 581 |
| 2009 | 146 | 599 |
| 2010 | 276 | 679 |
| 2011 | 311 | 689 |
| 2012 | 411 | 676 |
| 2013 | 448 | 758 |
| 2014 | 605 | 850 |
| 2015 | 636 | 853 |
| 2016 | 545 | 915 |
| 2017 | 637 | 885 |
| 2018 | 582 | 858 |
| 2019 | 601 | 1004 |
| 2020 | 674 | 987 |
| 2021 | 600 | 978 |
| 2022 | 507 | 895 |
| 2023 | 511 | 797 |
| 2024 | 528 | 848 |
| 2025 | 538 | 740 |
| 2026 | 333 | 528 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- A61L 27/54Biologically active materials5,266
- A61L 27/56Porous materials3,130
- A61L 27/58Materials at least partially resorbable by the body2,420
- A61L 27/52Hydrogels or hydrocolloids2,149
- A61L 27/507For artificial blood vessels875
- A61L 27/60Materials for use in artificial skin550
- A61L 27/505Stabilizers143
- A61L 27/502Plasticizers78
Recent patents
- Tapered heart valve covering6 Oct 2026US 12,751,822 B2Edwards Lifesciences Corporation
- Use of porous calcium-based granules for promoting healing of an intra-articular or peri-articular fracture of a fractured bone6 Oct 2026US 12,751,970 B2Joy Medical Devices Corporation
- Compressed bone composition and methods of use thereof6 Oct 2026US 12,752,040 B2LifeNet Health
- Polymeric patch scaffolds for articular cartilage regeneration6 Oct 2026US 12,752,041 B2University of Southern California
- Additive manufacturing based on fluid-fluid interface6 Oct 2026US 12,752,492 B2Carnegie Mellon University
- Percutaneous potts shunt devices and methods8 Oct 2026US 2026/0306241 A1Transmural Systems LLC
- Hybrid three-dimensional printing and electrospinning platform for multi-layered biomimetic scaffolds8 Oct 2026US 2026/0306705 A1
- Self-healing hydrogel8 Oct 2026US 2026/0306706 A1Indian Institute of Technology Indore
- Double networked 3d-printed biomaterials8 Oct 2026US 2026/0306707 A1The Brigham and Women S Hospital, Inc.
- Synthetic biopolymer solutions with increased lower critical solution temperatures8 Oct 2026US 2026/0306708 A1Dsm IP Assets B.V.
Most cited
By later US patents
- In situ polymerizable hydrogels2,015US 6,818,018 B1Incept, LLC · 2004
- Closed porous chambers for implanting tissue in a host1,958US 5,344,454 ABaxter International Inc. · 1994
- Drug releasing anastomosis devices and methods for treating anastomotic sites1,779US 7,108,701 B2Ethicon, Inc. · 2006
- Porous tissue scaffoldings for the repair of regeneration of tissue1,754US 6,333,029 B1Ethicon, Inc. · 2001
- Surgical implant and method for controlled release of chemotherapeutic agents1,679US 5,290,271 A1994