F16K 23/00
Valves for preventing drip from nozzles
F16K23/00 (Valves for preventing drip from nozzles) appears on 120 US grants and 86 published applications in this corpus.
Search patents in F16K- Granted patents
- 120
- Published applications
- 86
- Assignees
- 72
- Inventors
- 185
- Latest grant
- 28 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 4 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 3 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 16 | 0 |
| 2000 | 4 | 0 |
| 2001 | 2 | 0 |
| 2002 | 2 | 1 |
| 2003 | 1 | 3 |
| 2004 | 2 | 3 |
| 2005 | 2 | 8 |
| 2006 | 3 | 2 |
| 2007 | 1 | 2 |
| 2008 | 3 | 2 |
| 2009 | 2 | 3 |
| 2010 | 0 | 10 |
| 2011 | 3 | 3 |
| 2012 | 7 | 1 |
| 2013 | 1 | 2 |
| 2014 | 4 | 4 |
| 2015 | 2 | 4 |
| 2016 | 3 | 5 |
| 2017 | 4 | 8 |
| 2018 | 3 | 5 |
| 2019 | 4 | 4 |
| 2020 | 7 | 6 |
| 2021 | 3 | 2 |
| 2022 | 2 | 0 |
| 2023 | 1 | 0 |
| 2024 | 2 | 4 |
| 2025 | 4 | 3 |
| 2026 | 3 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method of operating drippage prevention system28 Apr 2026US 12,611,694 B2Taiwan Semiconductor Manufacturing Company.Ltd
- Suck-back valve21 Apr 2026US 12,607,273 B2Asahi Yukizai Corporation
- Timing adjustment valve and suckback valve provided with same10 Mar 2026US 12,571,481 B2Asahi Yukizai Corporation
- Liquid injection device26 Aug 2025US 12,397,311 B2Scientech Corporation
- Purgeable injection apparatus for spill-free replenishment of embedded foundation preservation wraps8 Jul 2025US 12,350,707 B2Copper Care Wood Preservatives, Inc.
- On-off valve and liquid supply path system1 Jan 2026US 2026/0000238 A1Kalerm Technology (Suzhou) Co., Ltd
- Purgeable injection apparatus for spill-free replenishment of embedded foundation preservation wraps2 Oct 2025US 2025/0303438 A1Copper Care Wood Preservatives, Inc.
- Treatment liquid supplying method and substrate treating apparatus3 Apr 2025US 2025/0108403 A1SCREEN Holdings Co., Ltd.
- Timing adjustment valve and suckback valve provided with same30 Jan 2025US 2025/0035225 A1Asahi Yukizai Corporation
- Purgeable injection apparatus for spill-free replenishment of embedded foundation preservation wraps21 Nov 2024US 2024/0383002 A1Copper Care Wood Preservatives, Inc.
Most cited
By later US patents
- Metered drop push button dispenser system58US 7,874,467 B2ReSeal International Limited Partnership · 2011
- Suck back valve with sucking amount control mechanism50US 5,988,524 ASMC Corporation · 1999
- Apparatus for dispensing paint and stain samples and methods of dispensing paint and stain samples49US 7,228,879 B2Fluid Management, Inc. · 2007
- Drip emitter with an independent non-drain valve43US 8,096,491 B2Plastro Irrigation Systems Ltd. · 2012
- Anti-pumping dispense valve35US 6,837,484 B2Saint-Gobain Performance Plastics Corporation · 2005