G01P 13/0006
Indicating or recording presence, absence, or direction, of movement: of fluids or
Official title: {of fluids or of granulous or powder-like substances}
G01P13/0006 (Indicating or recording presence, absence, or direction, of movement: of fluids or) appears on 366 US grants and 223 published applications in this corpus.
Search patents in G01P- Granted patents
- 366
- Published applications
- 223
- Assignees
- 247
- Inventors
- 721
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 4 | 0 |
| 1978 | 5 | 0 |
| 1979 | 5 | 0 |
| 1980 | 5 | 0 |
| 1981 | 5 | 0 |
| 1982 | 8 | 0 |
| 1983 | 3 | 0 |
| 1984 | 9 | 0 |
| 1985 | 6 | 0 |
| 1986 | 5 | 0 |
| 1987 | 6 | 0 |
| 1988 | 8 | 0 |
| 1989 | 8 | 0 |
| 1990 | 13 | 0 |
| 1991 | 5 | 0 |
| 1992 | 10 | 0 |
| 1993 | 19 | 0 |
| 1994 | 10 | 0 |
| 1995 | 9 | 0 |
| 1996 | 10 | 0 |
| 1997 | 3 | 0 |
| 1998 | 8 | 0 |
| 1999 | 6 | 0 |
| 2000 | 4 | 0 |
| 2001 | 7 | 1 |
| 2002 | 6 | 3 |
| 2003 | 3 | 5 |
| 2004 | 6 | 11 |
| 2005 | 6 | 6 |
| 2006 | 6 | 8 |
| 2007 | 7 | 5 |
| 2008 | 4 | 6 |
| 2009 | 2 | 8 |
| 2010 | 6 | 7 |
| 2011 | 6 | 7 |
| 2012 | 6 | 14 |
| 2013 | 5 | 4 |
| 2014 | 5 | 5 |
| 2015 | 9 | 11 |
| 2016 | 8 | 11 |
| 2017 | 4 | 7 |
| 2018 | 7 | 16 |
| 2019 | 14 | 17 |
| 2020 | 12 | 19 |
| 2021 | 13 | 14 |
| 2022 | 14 | 16 |
| 2023 | 10 | 8 |
| 2024 | 13 | 5 |
| 2025 | 4 | 5 |
| 2026 | 4 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G01P 13/0013By using a solid body which is shifted by the action of87
- G01P 13/0066By using differences of pressure in the fluid62
- G01P 13/006By using thermal variables55
- G01P 13/0026By using deflection of baffle-plates49
- G01P 13/004By using the rotation of vanes31
- G01P 13/0073By using vibrations generated by the fluid19
- G01P 13/0053By using dynamo-electric effect0
Recent patents
- Systems and methods of detecting incorrect connections in a humidification system11 Aug 2026US 12,702,772 B2Fisher & Paykel Healthcare Limited
- Fluid flow sensor16 Jun 2026US 12,656,191 B2Flusso Limited
- Digital air flow detection in a duct26 May 2026US 12,638,470 B1Arctevity Inc.
- Method for self-testing an angle-of-attack probe and method for checking the velocity of an airflow provided by a series of associated Pitot probes and angle-of-attack probe17 Feb 2026US 12,553,919 B2Thales
- Dielectric sensor capable of identifying resin flow direction and preparation method and application thereof12 Aug 2025US 12,385,942 B1Huazhong University of Science and Technology
- A dispensing system, a method of purging a dispenser and a purge initiation sytem10 Sep 2026US 2026/0266865 A13M Innovative Properties Company
- Sensor For Sensing Fluid Flow, Touch and/or Vibration3 Sep 2026US 2026/0259037 A1Stellar Advanced Concepts Ltd
- System and method for visual anemometry using flow-structure interactions28 May 2026US 2026/0147013 A1California Institute of Technology
- Pressure source localization using a multi-sensor wearable device for blast and sound waves12 Feb 2026US 2026/0043703 A1Advanced Materials and Devices, Inc.
- System and method monitoring fluid flow4 Sep 2025US 2025/0277807 A1DEKA Products Limited Partnership
Most cited
By later US patents
- Pressure-measurement flow control system462US 4,808,161 A1989
- Method and system for measuring volume and controlling flow439US 5,533,389 ADEKA Products Limited Partnership · 1996
- Flow control system using boyle's law390US 4,778,451 A1988
- Flow control system with volume-measuring system using a resonatable mass332US 5,575,310 ADEKA Products Limited Partnership · 1996
- Enhanced pressure measurement flow control system325US 4,826,482 A1989