A61F 2230/0021
Square
Official title: square
A61F2230/0021 (Square) appears on 420 US grants and 403 published applications in this corpus.
Search patents in A61F- Granted patents
- 420
- Published applications
- 403
- Assignees
- 236
- Inventors
- 705
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 3 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 3 | 0 |
| 1990 | 5 | 0 |
| 1991 | 3 | 0 |
| 1992 | 6 | 0 |
| 1993 | 1 | 0 |
| 1994 | 8 | 0 |
| 1995 | 6 | 0 |
| 1996 | 7 | 0 |
| 1997 | 8 | 0 |
| 1998 | 13 | 0 |
| 1999 | 22 | 0 |
| 2000 | 18 | 0 |
| 2001 | 20 | 13 |
| 2002 | 17 | 17 |
| 2003 | 13 | 25 |
| 2004 | 13 | 22 |
| 2005 | 13 | 37 |
| 2006 | 13 | 22 |
| 2007 | 7 | 16 |
| 2008 | 4 | 13 |
| 2009 | 16 | 13 |
| 2010 | 8 | 15 |
| 2011 | 10 | 9 |
| 2012 | 16 | 19 |
| 2013 | 12 | 12 |
| 2014 | 13 | 13 |
| 2015 | 9 | 7 |
| 2016 | 17 | 22 |
| 2017 | 15 | 19 |
| 2018 | 12 | 13 |
| 2019 | 12 | 6 |
| 2020 | 11 | 17 |
| 2021 | 8 | 19 |
| 2022 | 9 | 11 |
| 2023 | 10 | 14 |
| 2024 | 11 | 11 |
| 2025 | 8 | 12 |
| 2026 | 7 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Gender-specific mesh implant with barrier for inguinal hernia repair6 Oct 2026US 12,751,810 B2Hexagon Health, Inc.
- Delivery apparatus for mechanically expandable valve21 Jul 2026US 12,685,635 B2Edwards Lifesciences Corporation
- Hiatal hernia repair mesh with starlock configuration for hiatal hernia repairs and methods thereof12 May 2026US 12,622,775 B2Syn LLC
- Two stage tricuspid valve implant5 May 2026US 12,616,568 B2St. Jude Medical, Cardiology Division, Inc.
- Local drug delivery devices and methods for treating cancer28 Apr 2026US 12,611,492 B2Massachusetts Institute of Technology
- Gender-specific mesh implant with barrier for inguinal hernia repair1 Oct 2026US 2026/0294611 A1Sofradim Production
- Prosthetic Heart Valves Having Leaflet Protection27 Aug 2026US 2026/0248610 A1Medtronic, Inc.
- Branch point flow diversion device20 Aug 2026US 2026/0240640 A1Thru-Flo Endovascular, Inc.
- Two Stage Tricuspid Valve Implant13 Aug 2026US 2026/0232432 A1St. Jude Medical, Cardiology Division, Inc.
- Hiatal hernia repair mesh with starlock configuration for hiatal hernia repairs and methods thereof26 Feb 2026US 2026/0053613 A1Syn LLC
Most cited
By later US patents
- Prosthetic implant1,505US 4,834,757 A1989
- Spinal implantation methods utilizing a middle expandable implant1,273US 5,390,683 A1995
- Surgical prosthetic implant facilitating vertebral interbody fusion1,185US 4,878,915 A1989
- Radially expandable endoprosthesis and the like1,018US 5,019,090 ACorvita Corporation · 1991
- Translateral spinal implant1,009US 5,860,973 A1999