G05D 23/1904
Variable in time
Official title: {variable in time}
G05D23/1904 (Variable in time) appears on 633 US grants and 496 published applications in this corpus.
Search patents in G05D- Granted patents
- 633
- Published applications
- 496
- Assignees
- 268
- Inventors
- 1,077
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 12 | 0 |
| 1977 | 9 | 0 |
| 1978 | 14 | 0 |
| 1979 | 9 | 0 |
| 1980 | 17 | 0 |
| 1981 | 14 | 0 |
| 1982 | 10 | 0 |
| 1983 | 10 | 0 |
| 1984 | 9 | 0 |
| 1985 | 11 | 0 |
| 1986 | 5 | 0 |
| 1987 | 15 | 0 |
| 1988 | 6 | 0 |
| 1989 | 7 | 0 |
| 1990 | 6 | 0 |
| 1991 | 9 | 0 |
| 1992 | 5 | 0 |
| 1993 | 8 | 0 |
| 1994 | 10 | 0 |
| 1995 | 5 | 0 |
| 1996 | 7 | 0 |
| 1997 | 8 | 0 |
| 1998 | 10 | 0 |
| 1999 | 10 | 0 |
| 2000 | 5 | 0 |
| 2001 | 9 | 1 |
| 2002 | 8 | 4 |
| 2003 | 10 | 9 |
| 2004 | 7 | 9 |
| 2005 | 3 | 16 |
| 2006 | 8 | 7 |
| 2007 | 11 | 12 |
| 2008 | 2 | 5 |
| 2009 | 5 | 6 |
| 2010 | 8 | 20 |
| 2011 | 6 | 18 |
| 2012 | 14 | 28 |
| 2013 | 20 | 29 |
| 2014 | 18 | 46 |
| 2015 | 18 | 46 |
| 2016 | 27 | 27 |
| 2017 | 34 | 27 |
| 2018 | 30 | 34 |
| 2019 | 35 | 30 |
| 2020 | 33 | 29 |
| 2021 | 22 | 14 |
| 2022 | 16 | 17 |
| 2023 | 21 | 19 |
| 2024 | 16 | 16 |
| 2025 | 16 | 17 |
| 2026 | 5 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- System for communication, optimization and demand control for an appliance14 Jul 2026US 12,681,513 B2Resideo USA LLC
- Ultrasonic scalpel rod temperature control method and system based on temperature distribution function model30 Jun 2026US 12,667,382 B2Innolcon Medical Technology (Suzhou) Co., Ltd.
- Method of roasting14 Apr 2026US 12,599,145 B2Societe des Produits Nestle S. A.
- Energy management method24 Mar 2026US 12,585,298 B2Samsung Electronics Co., Ltd.
- Automated temperature control system for spas20 Jan 2026US 12,527,717 B2Sundance Spas, Inc.
- Methods and systems for heating emergency regulation in smart cities based on internet of things large models17 Sep 2026US 2026/0277258 A1Chengdu Qinchuan Iot Technology Co., Ltd.
- Method for operating a heat exchanger unit for changing the physical state of matter of an aqueous formulation27 Aug 2026US 2026/0252129 A1Lonza Ltd.
- Aerosol generation system and heating control method therefor20 Aug 2026US 2026/0240256 A1Shenzhen Huabao Collaborative Innovation Technology Research Institute Co., Ltd.
- Power-to-hydrogen plant, control unit and control method thereof13 Aug 2026US 2026/0234822 A1Hitachi Energy Ltd
- Monitoring device, monitoring method, and program30 Jul 2026US 2026/0219116 A1Mitsubishi Heavy Industries, Ltd.
Most cited
By later US patents
- Controller interface with multiple day programming569US 7,114,554 B2Honeywell International Inc. · 2006
- System and method of use for a user interface dashboard of a heating, ventilation and air conditioning network414US 8,239,066 B2Lennox Industries Inc. · 2012
- Thermal comfort controller having an integral energy savings estimator401US 6,478,233 B1Honeywell International Inc. · 2002
- Graphical user interface system for a thermal comfort controller353US 6,595,430 B1Honeywell International Inc. · 2003
- System and method for using ramped setpoint temperature variation with networked thermostats to improve efficiency320US 8,010,237 B2EcoFactor, Inc. · 2011