G01L 21/04
Wherein the chamber is closed by liquid
Official title: wherein the chamber is closed by liquid; Vacuum gauges of the McLeod type
G01L21/04 (Wherein the chamber is closed by liquid) appears on 3 US grants and 3 published applications in this corpus.
Search patents in G01L- Granted patents
- 3
- Published applications
- 3
- Assignees
- 4
- Inventors
- 12
- Latest grant
- 18 Aug 2015
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 1 | 0 |
| 2015 | 1 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Respiratory condition analysis apparatus, respiratory condition display apparatus, processing method therein, and program18 Aug 2015US 9,109,971 B2Sony Corporation
- Masker sound generation apparatus and program14 Oct 2014US 8,861,742 B2Yamaha Corporation
- Pressure gauge26 Aug 1980US 4,218,927 AGilmont Instruments, Inc.
- Systems and Methods for Human Speech Training12 Jul 2018US 2018/0197535 A1Board of Regents, The University of Texas System
- Respiratory condition analysis apparatus, respiratory condition display apparatus, processing method therein, and program14 Jun 2012US 2012/0150054 A1Sony Corporation
- Masker sound generation apparatus and program28 Jul 2011US 2011/0182438 A1Yamaha Corporation
Most cited
By later US patents
- Pressure gauge1US 4,218,927 AGilmont Instruments, Inc. · 1980
- Masker sound generation apparatus and program1US 8,861,742 B2Yamaha Corporation · 2014
- Respiratory condition analysis apparatus, respiratory condition display apparatus, processing method therein, and program1US 9,109,971 B2Sony Corporation · 2015