A61B 1/32
Devices for opening or enlarging the visual field
Official title: Devices for opening or enlarging the visual field, e.g. of a tube of the body
A61B1/32 (Devices for opening or enlarging the visual field) appears on 1,416 US grants and 1,746 published applications in this corpus.
Search patents in A61B- Granted patents
- 1,416
- Published applications
- 1,746
- Assignees
- 560
- Inventors
- 2,337
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 4 | 0 |
| 1981 | 3 | 0 |
| 1982 | 5 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 2 | 0 |
| 1986 | 7 | 0 |
| 1987 | 3 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 6 | 0 |
| 1991 | 9 | 0 |
| 1992 | 6 | 0 |
| 1993 | 7 | 0 |
| 1994 | 3 | 0 |
| 1995 | 7 | 0 |
| 1996 | 9 | 0 |
| 1997 | 5 | 0 |
| 1998 | 16 | 0 |
| 1999 | 18 | 0 |
| 2000 | 12 | 0 |
| 2001 | 13 | 4 |
| 2002 | 21 | 16 |
| 2003 | 13 | 36 |
| 2004 | 15 | 25 |
| 2005 | 15 | 42 |
| 2006 | 20 | 36 |
| 2007 | 13 | 39 |
| 2008 | 13 | 48 |
| 2009 | 9 | 47 |
| 2010 | 15 | 72 |
| 2011 | 30 | 71 |
| 2012 | 56 | 72 |
| 2013 | 81 | 139 |
| 2014 | 91 | 114 |
| 2015 | 88 | 97 |
| 2016 | 87 | 87 |
| 2017 | 87 | 88 |
| 2018 | 64 | 90 |
| 2019 | 71 | 98 |
| 2020 | 92 | 88 |
| 2021 | 75 | 92 |
| 2022 | 73 | 82 |
| 2023 | 61 | 75 |
| 2024 | 77 | 80 |
| 2025 | 65 | 77 |
| 2026 | 35 | 31 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Vaginal speculum and cervical screening kit15 Sep 2026US 12,733,803 B2Viospex
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- Endodontic surgery tissue retractor device18 Aug 2026US 12,708,257 B2
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- Image capture and quality assessment for dental treatment10 Sep 2026US 2026/0262928 A1Align Technology, Inc.
- Dental imaging system and method13 Aug 2026US 2026/0232411 A1Alta Smiles LLC
- Devices and Methods for Insertion and/or Pressurization of a Balloon Catheter for Balloon Dilation of the Eustachian Tube and Other Anatomical Passageways Accessible Through the Nostril of a Human6 Aug 2026US 2026/0224868 A1Venteus ApS
- Oral imaging device and system thereof30 Jul 2026US 2026/0215672 A1Guangzhou Stars Pulse Co., Ltd.
Most cited
By later US patents
- Shape lockable apparatus and method for advancing an instrument through unsupported anatomy2,067US 6,790,173 B2USGI Medical, Inc. · 2004
- Shape lockable apparatus and method for advancing an instrument through unsupported anatomy1,717US 6,960,163 B2USGI Medical, Inc. · 2005
- Articulating endoscopic surgical apparatus1,604US 5,391,180 AUnited States Surgical Corporation · 1995
- Retractor1,392US 6,254,534 B1Atropos Limited · 2001
- Articulating endoscopic surgical apparatus1,375US 5,490,819 AUnited States Surgical Corporation · 1996