G05D 9/02
Without auxiliary power
Official title: without auxiliary power
G05D9/02 (Without auxiliary power) appears on 119 US grants and 82 published applications in this corpus.
Search patents in G05D- Granted patents
- 119
- Published applications
- 82
- Assignees
- 79
- Inventors
- 206
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 3 | 0 |
| 1991 | 3 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 4 | 0 |
| 2000 | 3 | 0 |
| 2001 | 4 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 3 |
| 2004 | 3 | 3 |
| 2005 | 2 | 4 |
| 2006 | 2 | 2 |
| 2007 | 3 | 4 |
| 2008 | 1 | 0 |
| 2009 | 1 | 1 |
| 2010 | 2 | 0 |
| 2011 | 0 | 1 |
| 2012 | 1 | 0 |
| 2013 | 0 | 2 |
| 2014 | 1 | 1 |
| 2015 | 0 | 2 |
| 2016 | 7 | 8 |
| 2017 | 4 | 4 |
| 2018 | 4 | 5 |
| 2019 | 2 | 4 |
| 2020 | 4 | 7 |
| 2021 | 6 | 5 |
| 2022 | 5 | 10 |
| 2023 | 5 | 3 |
| 2024 | 8 | 6 |
| 2025 | 6 | 3 |
| 2026 | 1 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Device comprising a floating plate and extendable pipe for controlled discharge of liquid16 Jun 2026US 12,656,791 B2Premier Tech Eau Et Environnement LtéE
- System for controlling rain water flow23 Dec 2025US 12,503,857 B1
- Level controller16 Dec 2025US 12,498,741 B2Kimray, Inc.
- Automatic drain valve9 Dec 2025US 12,492,540 B2B/E Aerospace, Inc.
- Fluid injection system with smart injection and receiver tanks8 Jul 2025US 12,355,222 B2Novinium, Inc.
- Apparatus for the Control of a Flow of a Liquid1 Oct 2026US 2026/0299625 A1
- Techniques for fluid control4 Jun 2026US 2026/0153162 A1
- Device comprising a floating plate and extendable pipe for controlled discharge of liquid23 Apr 2026US 2026/0111046 A1Premier Tech Eau Et Environnement LtéE
- Fluid flow control based on a liquid level in a container26 Mar 2026US 2026/0086583 A1
- Technique for Small Volume Metering10 Jul 2025US 2025/0224745 A1National Research Council of Canada
Most cited
By later US patents
- Sensor monitoring apparatus34US 4,167,163 ARobert Bosch GmbH · 1979
- Valve apparatus24US 4,909,274 A1990
- Fuzzy logic liquid level control23US 5,809,795 AYork International Corporation · 1998
- Method and apparatus for control of an upstream water level20US 4,877,352 AWaterman Industries, Inc. · 1989
- Filter apparatus having liquid control mechanism19US 5,049,270 ACuno Incorporated · 1991