F27D 21/0035
Devices for monitoring the weight of quantities added to the charge
Official title: {Devices for monitoring the weight of quantities added to the charge}
F27D21/0035 (Devices for monitoring the weight of quantities added to the charge) appears on 42 US grants and 26 published applications in this corpus.
Search patents in F27D- Granted patents
- 42
- Published applications
- 26
- Assignees
- 44
- Inventors
- 167
- Latest grant
- 23 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 5 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 1 |
| 2010 | 1 | 1 |
| 2011 | 0 | 2 |
| 2012 | 0 | 0 |
| 2013 | 2 | 2 |
| 2014 | 0 | 3 |
| 2015 | 4 | 1 |
| 2016 | 1 | 5 |
| 2017 | 0 | 2 |
| 2018 | 3 | 2 |
| 2019 | 0 | 2 |
| 2020 | 1 | 0 |
| 2021 | 2 | 0 |
| 2022 | 0 | 1 |
| 2023 | 0 | 1 |
| 2024 | 0 | 1 |
| 2025 | 2 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Graphitization apparatus for manufacturing artificial graphite using laser23 Sep 2025US 12,422,191 B1Efc Co., Ltd.
- Refill system with improved utilization rate of ultra-thin glass production process16 Sep 2025US 12,415,741 B2Dowooinsys Co., Ltd.
- Device and method for sensing a conveying rate of a liquid material19 Oct 2021US 11,149,323 B2SMS group GmbH
- Surface detection apparatus for blast furnace1 Jun 2021US 11,021,765 B2Wadeco Co., Ltd.
- Equipment for measurement and control of load material fed into a furnace10 Nov 2020US 10,830,537 B2Tenova S. P. A.
- Furnace with level detection system19 Dec 2024US 2024/0418447 A1
- Batchwise-Charged Electric Arc Furnace System14 Sep 2023US 2023/0288142 A1
- Refill system with improved utilization rate of ultra-thin glass production process28 Jul 2022US 2022/0234934 A1Dowooinsys Co., Ltd.
- Surface detection apparatus for blast furnace15 Aug 2019US 2019/0249267 A1Wadeco Co., Ltd.
- Device and method for sensing a conveying rate of a liquid material9 May 2019US 2019/0136334 A1SMS group GmbH
Most cited
By later US patents
- Apparatus and procedures for replenishing particulate materials used in industrial processes36US 6,358,401 B1Intercat Equipment, Inc. · 2002
- Process for producing an iron melt26US 5,611,838 AVoest-Alpine Industrieanlagenbau GmbH · 1997
- Scrap metal measuring and weighing process and apparatus17US 5,948,137 AThe David J. Joseph Company · 1999
- Method of manufacturing titanium-aluminum base alloys16US 5,311,655 ABohler Edelstahl GmbH · 1994
- Radiant energy profilometer12US 4,290,067 APaul Wurth S. A. · 1981