B63C 11/00
Equipment for dwelling or working underwater
Official title: Equipment for dwelling or working underwater; Means for searching for underwater objects (composition of chemical substances for use in breathing apparatus A62D9/00; swimming aids or equipment A63B31/00 - A63B35/00; submarines B63G8/00)
B63C11/00 (Equipment for dwelling or working underwater) appears on 2,887 US grants and 2,207 published applications in this corpus.
Search patents in B63C- Granted patents
- 2,887
- Published applications
- 2,207
- Assignees
- 1,097
- Inventors
- 4,435
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 54 | 0 |
| 1977 | 52 | 0 |
| 1978 | 44 | 0 |
| 1979 | 30 | 0 |
| 1980 | 50 | 0 |
| 1981 | 41 | 0 |
| 1982 | 28 | 0 |
| 1983 | 20 | 0 |
| 1984 | 36 | 0 |
| 1985 | 33 | 0 |
| 1986 | 27 | 0 |
| 1987 | 31 | 0 |
| 1988 | 37 | 0 |
| 1989 | 66 | 0 |
| 1990 | 49 | 0 |
| 1991 | 56 | 0 |
| 1992 | 41 | 0 |
| 1993 | 59 | 0 |
| 1994 | 61 | 0 |
| 1995 | 49 | 0 |
| 1996 | 66 | 0 |
| 1997 | 74 | 0 |
| 1998 | 67 | 0 |
| 1999 | 81 | 0 |
| 2000 | 55 | 0 |
| 2001 | 54 | 21 |
| 2002 | 57 | 73 |
| 2003 | 66 | 69 |
| 2004 | 68 | 78 |
| 2005 | 55 | 93 |
| 2006 | 67 | 81 |
| 2007 | 58 | 90 |
| 2008 | 44 | 95 |
| 2009 | 37 | 93 |
| 2010 | 56 | 89 |
| 2011 | 62 | 74 |
| 2012 | 56 | 58 |
| 2013 | 60 | 88 |
| 2014 | 63 | 77 |
| 2015 | 62 | 93 |
| 2016 | 60 | 98 |
| 2017 | 78 | 90 |
| 2018 | 80 | 111 |
| 2019 | 75 | 119 |
| 2020 | 110 | 107 |
| 2021 | 79 | 105 |
| 2022 | 76 | 87 |
| 2023 | 69 | 103 |
| 2024 | 70 | 83 |
| 2025 | 69 | 78 |
| 2026 | 49 | 54 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B63C 11/02Divers' equipment2,058
- B63C 11/52Tools specially adapted for working underwater, not otherwise provided for333
- B63C 11/34Diving chambers with mechanical link228
- B63C 11/48Means for searching for underwater objects220
- B63C 11/46Divers' sleds or like craft, i.e. craft on which man in diving-suit154
- B63C 2011/005Underwater equipment specially adapted for use by animalsIndexing code1
Recent patents
- Breathable mask6 Oct 2026US 12,752,892 B2Qbas Co., Ltd.
- Oxygen tank flotation device29 Sep 2026US 12,747,011 B2
- Head of a closed-circuit diving breathing apparatus (rebreather)22 Sep 2026US 12,741,726 B2Xdeep Sp. Z O. O. Sp. K.
- Full face mask equipped with an inlet air filter25 Aug 2026US 12,714,890 B2Mestel Safety S.R.L.
- Breathable mask25 Aug 2026US 12,715,562 B2Qbas Co., Ltd.
- Apparatuses and systems for artifact reduction in electrodermal activity1 Oct 2026US 2026/0296608 A1University of Connecticut
- Wireless Submersible Gauge Having Underwater Communication Interface for Smart Devices1 Oct 2026US 2026/0296609 A1Johnson Outdoors Inc.
- Dive mask1 Oct 2026US 2026/0296610 A1
- Snorkeling mask1 Oct 2026US 2026/0296611 A1Dongguan Ruikeda Sports Technology Company Limited
- Apparatus, systems, and methods for hyperbaric thermoregulated medical evacuation pod24 Sep 2026US 2026/0283885 A1Towster Corporation
Most cited
By later US patents
- Reversible, quick-adjustable diver's face mask strap239US 5,046,200 A1991
- Diving mask with quick-release strap attachment225US 5,657,493 ADacor Corporation · 1997
- Adjustable strap for use with a diver's face mask212US 4,910,806 AInnovative Scuba Concepts, Inc. · 1990
- Demand valve for a respirator192US 5,042,473 APro-Tech Respirators, Inc. · 1991
- Underwater-breathing device190US 4,304,229 A1981