A61F 2002/3052
Unrestrained in only one direction
Official title: {unrestrained in only one direction, e.g. moving unidirectionally}
A61F2002/3052 (Unrestrained in only one direction) appears on 783 US grants and 890 published applications in this corpus.
Search patents in A61F- Granted patents
- 783
- Published applications
- 890
- Assignees
- 191
- Inventors
- 749
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 3 | 0 |
| 1998 | 5 | 0 |
| 1999 | 9 | 0 |
| 2000 | 4 | 0 |
| 2001 | 7 | 1 |
| 2002 | 7 | 12 |
| 2003 | 7 | 5 |
| 2004 | 4 | 16 |
| 2005 | 8 | 29 |
| 2006 | 8 | 27 |
| 2007 | 6 | 35 |
| 2008 | 4 | 33 |
| 2009 | 11 | 24 |
| 2010 | 20 | 48 |
| 2011 | 35 | 37 |
| 2012 | 37 | 57 |
| 2013 | 43 | 47 |
| 2014 | 58 | 68 |
| 2015 | 57 | 49 |
| 2016 | 49 | 49 |
| 2017 | 51 | 56 |
| 2018 | 52 | 52 |
| 2019 | 57 | 55 |
| 2020 | 46 | 35 |
| 2021 | 34 | 34 |
| 2022 | 37 | 28 |
| 2023 | 43 | 42 |
| 2024 | 31 | 20 |
| 2025 | 26 | 20 |
| 2026 | 11 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Bone fusion device, apparatus and method1 Sep 2026US 12,721,735 B1Neuropro Technologies, Inc.
- Expandable fusion device and method of installation thereof4 Aug 2026US 12,697,231 B2
- Expandable interspinous process fixation device21 Jul 2026US 12,685,646 B2Globus Medical, Inc.
- Expandable fusions devices, instruments, and methods thereof19 May 2026US 12,629,263 B2Globus Medical, Inc.
- Spinal fixation system and kit17 Mar 2026US 12,575,939 B2Mayo Foundation for Medical Education and Research
- Expandable fusion device and method of installation thereof17 Sep 2026US 2026/0272669 A1Globus Medical, Inc.
- Expandable fusion device and method of installation thereof23 Jul 2026US 2026/0207348 A1Globus Medical, Inc.
- Spinal Fixation System and Kit16 Jul 2026US 2026/0199101 A1Mayo Foundation for Medical Education and Research
- Bone fusion device16 Jul 2026US 2026/0199102 A1Neuropro Technologies, Inc.
- Non-invasively adjustable bone prosthesis25 Jun 2026US 2026/0174479 A1Granite Medical, LLC
Most cited
By later US patents
- Expandable spinal implant and surgical method1,539US 5,059,193 ASpine-Tech, Inc. · 1991
- Intervertebral space shape conforming cage device1,067US 5,653,763 AFastenetix, LLC · 1997
- Expandable fusion device and method of installation thereof1,044US 8,062,375 B2Globus Medical, Inc. · 2011
- Adjustable bone fusion implant and method1,032US 6,562,074 B2MedicineLodge, Inc. · 2003
- Expandable intervertebral spacers976US 6,193,757 B1SDGI Holdings, Inc. · 2001