F16K 35/00
Means to prevent accidental or unauthorised actuation
F16K35/00 (Means to prevent accidental or unauthorised actuation) appears on 1,195 US grants and 913 published applications in this corpus.
Search patents in F16K- Granted patents
- 1,195
- Published applications
- 913
- Assignees
- 674
- Inventors
- 2,011
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 21 | 0 |
| 1977 | 16 | 0 |
| 1978 | 8 | 0 |
| 1979 | 6 | 0 |
| 1980 | 16 | 0 |
| 1981 | 14 | 0 |
| 1982 | 7 | 0 |
| 1983 | 9 | 0 |
| 1984 | 15 | 0 |
| 1985 | 15 | 0 |
| 1986 | 12 | 0 |
| 1987 | 13 | 0 |
| 1988 | 17 | 0 |
| 1989 | 9 | 0 |
| 1990 | 13 | 0 |
| 1991 | 19 | 0 |
| 1992 | 14 | 0 |
| 1993 | 19 | 0 |
| 1994 | 18 | 0 |
| 1995 | 16 | 0 |
| 1996 | 17 | 0 |
| 1997 | 17 | 0 |
| 1998 | 22 | 0 |
| 1999 | 22 | 0 |
| 2000 | 28 | 0 |
| 2001 | 31 | 10 |
| 2002 | 22 | 18 |
| 2003 | 20 | 14 |
| 2004 | 18 | 30 |
| 2005 | 13 | 22 |
| 2006 | 24 | 36 |
| 2007 | 15 | 23 |
| 2008 | 16 | 15 |
| 2009 | 14 | 27 |
| 2010 | 9 | 30 |
| 2011 | 20 | 20 |
| 2012 | 19 | 30 |
| 2013 | 24 | 35 |
| 2014 | 29 | 40 |
| 2015 | 34 | 56 |
| 2016 | 36 | 62 |
| 2017 | 57 | 57 |
| 2018 | 61 | 44 |
| 2019 | 52 | 57 |
| 2020 | 53 | 68 |
| 2021 | 60 | 39 |
| 2022 | 46 | 42 |
| 2023 | 45 | 48 |
| 2024 | 35 | 36 |
| 2025 | 38 | 30 |
| 2026 | 21 | 24 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F16K 35/02To be locked or disconnected by means of a pushing or pulling353
- F16K 35/06Means to prevent accidental or unauthorised actuation: using a removable actuating or331
- F16K 35/10Means to prevent accidental or unauthorised actuation: with locking caps or locking302
- F16K 35/04Yieldingly resisting the actuation118
- F16K 35/14Interlocking two or more valves82
- F16K 35/16Means to prevent accidental or unauthorised actuation: with locking member actuated by41
- F16K 35/08Requiring setting according to a code12
- F16K 35/12Means to prevent accidental or unauthorised actuation: with sealing wire7
Recent patents
- Faucet with safety handle6 Oct 2026US 12,753,592 B2Dawnway Enterprise Co., Ltd.
- Sleeve for securing a valve assembly6 Oct 2026US 12,753,857 B1Snf S.A.S.
- Safety valve29 Sep 2026US 12,747,806 B2Ham-Let [Israel-Canada] Ltd.
- Skimmer to main drain diverter valve15 Sep 2026US 12,736,143 B1Aquastar Pool Products, Inc.
- Railway tank car having a discharge valve assembly and a dis-engageable valve handle assembly coupled to the discharge valve assembly15 Sep 2026US 12,736,149 B2Gunderson LLC
- A locking device for inflatable vehicles17 Sep 2026US 2026/0275765 A1
- Fluid couplings with in-line flow valve17 Sep 2026US 2026/0276121 A1Colder Products Company
- Valve upper part for sanitary fittings10 Sep 2026US 2026/0266391 A1Flühs Drehtechnik GmbH
- Connector with self-locking function10 Sep 2026US 2026/0266392 A1Dongguan Jijia Thermal Control Technology Co., Ltd.
- Relief Valve3 Sep 2026US 2026/0258882 A1Leinemann GmbH & Co. KG
Most cited
By later US patents
- Valve lock543US 4,681,134 A1987
- Lockout modules538US 5,116,018 AAutomax, Inc. · 1992
- Adjustable lockout device for knife gate valves530US 6,044,860 ASPX Corporation · 2000
- Lock device and lock method for knife gate valves526US 6,398,184 B1General Signal Corporation · 2002
- Valve lockout/tag out system516US 6,494,065 B2Babbitt Steam Specialty Company · 2002