F16B 37/14
Cap nuts
Official title: Cap nuts; Nut caps or bolt caps
F16B37/14 (Cap nuts) appears on 802 US grants and 767 published applications in this corpus.
Search patents in F16B- Granted patents
- 802
- Published applications
- 767
- Assignees
- 446
- Inventors
- 1,462
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 7 | 0 |
| 1978 | 4 | 0 |
| 1979 | 3 | 0 |
| 1980 | 5 | 0 |
| 1981 | 6 | 0 |
| 1982 | 3 | 0 |
| 1983 | 4 | 0 |
| 1984 | 7 | 0 |
| 1985 | 3 | 0 |
| 1986 | 4 | 0 |
| 1987 | 4 | 0 |
| 1988 | 10 | 0 |
| 1989 | 20 | 0 |
| 1990 | 17 | 0 |
| 1991 | 11 | 0 |
| 1992 | 5 | 0 |
| 1993 | 9 | 0 |
| 1994 | 10 | 0 |
| 1995 | 8 | 0 |
| 1996 | 3 | 0 |
| 1997 | 10 | 0 |
| 1998 | 13 | 0 |
| 1999 | 9 | 0 |
| 2000 | 23 | 0 |
| 2001 | 14 | 1 |
| 2002 | 12 | 13 |
| 2003 | 8 | 17 |
| 2004 | 13 | 12 |
| 2005 | 9 | 18 |
| 2006 | 6 | 17 |
| 2007 | 10 | 21 |
| 2008 | 13 | 16 |
| 2009 | 2 | 26 |
| 2010 | 12 | 19 |
| 2011 | 19 | 26 |
| 2012 | 17 | 26 |
| 2013 | 12 | 32 |
| 2014 | 28 | 44 |
| 2015 | 34 | 42 |
| 2016 | 42 | 44 |
| 2017 | 37 | 41 |
| 2018 | 35 | 41 |
| 2019 | 50 | 73 |
| 2020 | 34 | 55 |
| 2021 | 51 | 43 |
| 2022 | 40 | 50 |
| 2023 | 36 | 30 |
| 2024 | 32 | 26 |
| 2025 | 24 | 20 |
| 2026 | 10 | 14 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Fastener restraint assembly to prevent rotational loosening of mechanical fasteners, fastener and method8 Sep 2026US 12,729,710 B2
- Fastener systems and methods for joining multiple substrates of workpiece28 Jul 2026US 12,692,884 B2The Boeing Company
- Anti-theft locking bolt assembly28 Jul 2026US 12,692,897 B2Rimgard Sweden AB
- Fastening system for aircraft structures7 Jul 2026US 12,673,763 B2The Boeing Company
- Securing devices for containers and other structures16 Jun 2026US 12,654,917 B2ARRIS Enterprises LLC
- Fixing structure17 Sep 2026US 2026/0276013 A1Jentech Precision Industrial Co., LTD.
- Spark containment cap plate23 Jul 2026US 2026/0208879 A1Airbus Operations GmbH
- Anti-Tamper Securing Mechanism and Operation Method thereof23 Jul 2026US 2026/0214816 A1Nanning FuLian FuGui Precision Industrial Co., Ltd.
- Jig for spark containment caps18 Jun 2026US 2026/0167352 A1Airbus Operations GmbH
- Control device for varying the angle of attack of the blades of an antitorque rotor for an aircraft capable of hovering11 Jun 2026US 2026/0159233 A1Leonardo S.P.A.
Most cited
By later US patents
- Roof mount sealing assembly129US 8,448,405 B2D Three Enterprises, LLC · 2013
- Tamper-evident bolt125US 5,449,260 A1995
- Wing and method of manufacturing121US 10,179,640 B2The Boeing Company · 2019
- Detachably connecting cap for a screw used in orthopaedic surgery114US 6,102,914 ABiomat · 2000
- Mechanical roof fastener113US 4,744,187 AThe Firestone Tire & Rubber Company · 1988