G01N 9/266
For determining gas density
Official title: {for determining gas density}
G01N9/266 (For determining gas density) appears on 36 US grants and 33 published applications in this corpus.
Search patents in G01N- Granted patents
- 36
- Published applications
- 33
- Assignees
- 22
- Inventors
- 70
- Latest grant
- 23 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 1 |
| 2003 | 2 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 3 |
| 2011 | 0 | 0 |
| 2012 | 2 | 0 |
| 2013 | 1 | 1 |
| 2014 | 0 | 1 |
| 2015 | 1 | 2 |
| 2016 | 1 | 6 |
| 2017 | 3 | 1 |
| 2018 | 1 | 0 |
| 2019 | 1 | 0 |
| 2020 | 1 | 2 |
| 2021 | 1 | 3 |
| 2022 | 0 | 3 |
| 2023 | 2 | 5 |
| 2024 | 5 | 1 |
| 2025 | 4 | 1 |
| 2026 | 3 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Oxygen line verification for anesthesia gas flow controls23 Jun 2026US 12,661,475 B2Hu-Friedy Mfg.Co., Inc.
- Engine system and method for determining fuel characteristics12 May 2026US 12,624,668 B2Caterpillar Inc.
- Method for determining a gas quantity in an insulated switchgear10 Feb 2026US 12,546,678 B2Schneider Electric Industries SAS
- Gas density relay with online self-checking function, and checking method therefor19 Aug 2025US 12,392,700 B2Shanghai Roye Electric Co., Ltd.
- Gas density relay with sealing performance self-checking function, and implementation method therefor6 May 2025US 12,292,358 B2Shanghai Roye Electric Co., Ltd.
- Engine system and method for determining fuel characteristics22 Jan 2026US 2026/0022672 A1Caterpillar Inc.
- Abnormality determination device and abnormality determination method8 Jan 2026US 2026/0009690 A1Honda Motor Co., Ltd.
- Method, device, use and installation for gas density monitoring10 Apr 2025US 2025/0116588 A1Trafag AG
- Gas densimeter21 Mar 2024US 2024/0094105 A1WIKA Alexander Wiegand SE & Co. KG
- Method for determining a gas quantity in an insulated switchgear2 Nov 2023US 2023/0349787 A1Schneider Electric Industries SAS
Most cited
By later US patents
- Method and apparatus for measuring the relative density of gases48US 4,677,841 APrecision Measurement, Inc. · 1987
- Method and apparatus for determining steam quality and/or flow rate from impact force and flow restriction data10US 5,035,146 ATexaco Inc. · 1991
- Low leak gas density monitor assembly10US 6,651,483 B1ABB Technology AG · 2003
- Gas density monitor assembly8US 6,263,914 B1ABB Power T&D Company Inc. · 2001
- Network manageable advanced gas sensor apparatus and method8US 9,212,966 B2Solon Manufacturing Company · 2015