G01M 3/26
By measuring rate of loss or gain of fluid
Official title: by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
G01M3/26 (By measuring rate of loss or gain of fluid) appears on 3,541 US grants and 3,173 published applications in this corpus.
Search patents in G01M- Granted patents
- 3,541
- Published applications
- 3,173
- Assignees
- 1,927
- Inventors
- 7,300
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 31 | 0 |
| 1977 | 28 | 0 |
| 1978 | 38 | 0 |
| 1979 | 26 | 0 |
| 1980 | 23 | 0 |
| 1981 | 24 | 0 |
| 1982 | 24 | 0 |
| 1983 | 32 | 0 |
| 1984 | 38 | 0 |
| 1985 | 30 | 0 |
| 1986 | 43 | 0 |
| 1987 | 41 | 0 |
| 1988 | 33 | 0 |
| 1989 | 58 | 0 |
| 1990 | 42 | 0 |
| 1991 | 42 | 0 |
| 1992 | 53 | 0 |
| 1993 | 50 | 0 |
| 1994 | 68 | 0 |
| 1995 | 49 | 0 |
| 1996 | 46 | 0 |
| 1997 | 41 | 0 |
| 1998 | 42 | 0 |
| 1999 | 52 | 0 |
| 2000 | 52 | 0 |
| 2001 | 44 | 18 |
| 2002 | 50 | 28 |
| 2003 | 51 | 51 |
| 2004 | 34 | 46 |
| 2005 | 44 | 49 |
| 2006 | 42 | 56 |
| 2007 | 38 | 65 |
| 2008 | 36 | 82 |
| 2009 | 48 | 67 |
| 2010 | 49 | 75 |
| 2011 | 53 | 75 |
| 2012 | 50 | 79 |
| 2013 | 55 | 123 |
| 2014 | 72 | 136 |
| 2015 | 96 | 128 |
| 2016 | 115 | 157 |
| 2017 | 121 | 167 |
| 2018 | 128 | 216 |
| 2019 | 207 | 194 |
| 2020 | 176 | 231 |
| 2021 | 187 | 210 |
| 2022 | 189 | 235 |
| 2023 | 194 | 186 |
| 2024 | 197 | 193 |
| 2025 | 156 | 170 |
| 2026 | 103 | 136 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Gas leak detection device and gas leak detection method for identifying a gas leak in a test object6 Oct 2026US 12,754,095 B2Inficon GmbH
- Cyclorotors29 Sep 2026US 12,747,013 B2GE Energy Power Conversion Technology Limited
- System and method for monitoring vacuum valve closing condition in vacuum processing system29 Sep 2026US 12,748,012 B2Taiwan Semiconductor Manufacturing Company.Ltd
- Hydrogen leak sensing device and method for fuel cell vehicle29 Sep 2026US 12,749,695 B2Hyundai Motor Company
- Apparatuses, systems, and methods for isolating a nozzle of a vessel22 Sep 2026US 12,741,294 B2Saudi Arabian Oil Company
- Substrate processing apparatus and substrate processing method8 Oct 2026US 2026/0307120 A1Tokyo Electron Limited
- Reinforced film for biocontainers8 Oct 2026US 2026/0307373 A1EMD Millipore Corporation
- Fuel, communications, and power connection systems and related methods8 Oct 2026US 2026/0309574 A1BJ Energy Solutions, LLC
- Semiconductor wafer processing tool with improved leak check8 Oct 2026US 2026/0314308 A1Taiwan Semiconductor Manufacturing Company.Ltd
- Tire pressure loss detection1 Oct 2026US 2026/0298751 A1
Most cited
By later US patents
- Fluid control system for a medical device277US 8,206,345 B2Medtronic CryoCath LP · 2012
- Fluid control system for a medical device273US 8,225,643 B2Medtronic CryoCath LP · 2012
- Tube occluder for occluding collapsible tubes240US 7,559,524 B2DEKA Products Limited Partnership · 2009
- System and method for detecting a leak in an air bed213US 8,336,369 B2Select Comfort Corporation · 2012
- Angioplasty dilating guide wire212US 4,846,174 ASciMed Life Systems, Inc. · 1989