F16K 31/126
The fluid acting on a diaphragm, bellows, or the like
Official title: the fluid acting on a diaphragm, bellows, or the like (F16K31/145, F16K31/165, F16K31/365, F16K31/385 take precedence)
F16K31/126 (The fluid acting on a diaphragm, bellows, or the like) appears on 760 US grants and 738 published applications in this corpus.
Search patents in F16K- Granted patents
- 760
- Published applications
- 738
- Assignees
- 450
- Inventors
- 1,377
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 0 | 0 |
| 1978 | 3 | 0 |
| 1979 | 3 | 0 |
| 1980 | 10 | 0 |
| 1981 | 4 | 0 |
| 1982 | 4 | 0 |
| 1983 | 4 | 0 |
| 1984 | 8 | 0 |
| 1985 | 3 | 0 |
| 1986 | 3 | 0 |
| 1987 | 6 | 0 |
| 1988 | 6 | 0 |
| 1989 | 7 | 0 |
| 1990 | 4 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 9 | 0 |
| 1997 | 4 | 0 |
| 1998 | 6 | 0 |
| 1999 | 9 | 0 |
| 2000 | 13 | 0 |
| 2001 | 6 | 3 |
| 2002 | 8 | 7 |
| 2003 | 4 | 13 |
| 2004 | 7 | 15 |
| 2005 | 11 | 18 |
| 2006 | 15 | 15 |
| 2007 | 12 | 7 |
| 2008 | 2 | 27 |
| 2009 | 6 | 21 |
| 2010 | 10 | 28 |
| 2011 | 11 | 13 |
| 2012 | 21 | 36 |
| 2013 | 16 | 23 |
| 2014 | 31 | 30 |
| 2015 | 31 | 42 |
| 2016 | 33 | 44 |
| 2017 | 41 | 61 |
| 2018 | 42 | 51 |
| 2019 | 65 | 65 |
| 2020 | 54 | 42 |
| 2021 | 51 | 41 |
| 2022 | 39 | 31 |
| 2023 | 41 | 38 |
| 2024 | 35 | 29 |
| 2025 | 26 | 20 |
| 2026 | 23 | 18 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Fluid control valve with diaphragm tensioning geometry6 Oct 2026US 12,753,844 B2Equilibar, LLC
- Multiport gas chromatograph valve29 Sep 2026US 12,748,082 B2Rosemount Inc.
- Operating method for a valve system, computer program product, control unit, valve actuating apparatus, valve system and simulation program product25 Aug 2026US 12,716,519 B2Siemens Aktiengesellschaft
- Diaphragm valve formed using additive manufacture18 Aug 2026US 12,710,102 B2Neptune Technology Group Inc.
- Multiport gas chromatograph piston valve18 Aug 2026US 12,710,403 B2Rosemount Inc.
- Refrigerator appliance with liquid drain assembly8 Oct 2026US 2026/0309399 A1Haier US Appliance Solutions, Inc.
- Pneumatic drain valve driving device17 Sep 2026US 2026/0275694 A1Kohler (China) Investment Co., Ltd.
- Fluid control valve with diaphragm tensioning geometry27 Aug 2026US 2026/0251225 A1Equilibar, LLC
- Flow-adjusting valve spool with button20 Aug 2026US 2026/0243362 A1Kaiping Yizhan Valve Core Co., Ltd.
- Control valve6 Aug 2026US 2026/0226997 A1Nanjing Hanshu Environmental Protection Equipment Co., Ltd.
Most cited
By later US patents
- Microfabricated elastomeric valve and pump systems619US 6,408,878 B1California Institute of Technology · 2002
- Film processing system434US 6,296,711 B1CVD Systems, Inc. · 2001
- Method of making a microfabricated elastomeric valve294US 6,793,753 B2California Institute of Technology · 2004
- Valve positioner with pressure feedback, dynamic correction and diagnostics203US 5,573,032 ARosemount Inc. · 1996
- Microfabricated elastomeric valve and pump systems198US 6,929,030 B2California Institute of Technology · 2005