A61F 2/442
Intervertebral or spinal discs
Official title: {Intervertebral or spinal discs, e.g. resilient (non-disc-shaped intervertebral inflatable pockets A61F2/441; non-disc-shaped intervertebral fusion implants A61F2/4455)}
A61F2/442 (Intervertebral or spinal discs) appears on 5,145 US grants and 6,228 published applications in this corpus.
Search patents in A61F- Granted patents
- 5,145
- Published applications
- 6,228
- Assignees
- 1,062
- Inventors
- 4,275
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 5 | 0 |
| 1989 | 7 | 0 |
| 1990 | 10 | 0 |
| 1991 | 12 | 0 |
| 1992 | 11 | 0 |
| 1993 | 7 | 0 |
| 1994 | 11 | 0 |
| 1995 | 16 | 0 |
| 1996 | 24 | 0 |
| 1997 | 44 | 0 |
| 1998 | 36 | 0 |
| 1999 | 47 | 0 |
| 2000 | 93 | 0 |
| 2001 | 77 | 46 |
| 2002 | 108 | 178 |
| 2003 | 130 | 226 |
| 2004 | 128 | 351 |
| 2005 | 68 | 344 |
| 2006 | 145 | 355 |
| 2007 | 126 | 368 |
| 2008 | 75 | 333 |
| 2009 | 159 | 266 |
| 2010 | 216 | 282 |
| 2011 | 237 | 260 |
| 2012 | 267 | 282 |
| 2013 | 290 | 238 |
| 2014 | 280 | 272 |
| 2015 | 291 | 267 |
| 2016 | 262 | 291 |
| 2017 | 277 | 262 |
| 2018 | 248 | 248 |
| 2019 | 242 | 242 |
| 2020 | 208 | 212 |
| 2021 | 175 | 202 |
| 2022 | 205 | 195 |
| 2023 | 181 | 149 |
| 2024 | 169 | 133 |
| 2025 | 165 | 129 |
| 2026 | 86 | 97 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- A61F 2/4425Made of articulated components1,865
- A61F 2002/444For replacing the nucleus pulposusIndexing code618
- A61F 2002/4435Support means or repair of the natural disc wall, i.e. annulusIndexing code377
- A61F 2002/4445Means for culturing intervertebral disc tissueIndexing code80
- A61F 2002/445Intervertebral disc tissue harvest sitesIndexing code70
Recent patents
- Multi-piece intervertebral implants6 Oct 2026US 12,751,832 B2
- Sensor enabled interbody implants and methods for manufacturing same6 Oct 2026US 12,751,833 B2Nanohive Medical LLC
- Articulating expandable intervertebral implant6 Oct 2026US 12,751,835 B2Globus Medical, Inc.
- Method and apparatus for performing spine surgery29 Sep 2026US 12,745,997 B2NuVasive, Inc.
- Expandable cervical interbody and instruments thereof29 Sep 2026US 12,746,129 B2Warsaw Orthopedic, Inc.
- Implants for spinal fixation and or fusion8 Oct 2026US 2026/0306271 A1SI-Bone Inc.
- Spinal implant device1 Oct 2026US 2026/0294640 A1Spineology Inc.
- Expandable and conforming implant1 Oct 2026US 2026/0294641 A1Nexus Spine, LLC
- Systems and methods for orthopedic implant fixation1 Oct 2026US 2026/0294642 A1Carlsmed, Inc.
- Intervertebral Disc Replacement Implant And Methods Of Use24 Sep 2026US 2026/0283815 A1
Most cited
By later US patents
- Surgical instruments and method useful for endoscopic spinal procedures1,743US 5,599,279 AUnited States Surgical Corporation · 1997
- Intervertebral disc prosthesis1,635US 4,349,921 A1982
- Anterior buttress staple1,560US 7,341,591 B2DePuy Spine, Inc. · 2008
- Expandable spinal implant and surgical method1,539US 5,059,193 ASpine-Tech, Inc. · 1991
- Surgical prosthetic implant for vertebrae1,527US 5,192,327 A1993