F27B 9/20
The charge moving in a substantially straight path
Official title: the charge moving in a substantially straight path
F27B9/20 (The charge moving in a substantially straight path) appears on 791 US grants and 485 published applications in this corpus.
Search patents in F27B- Granted patents
- 791
- Published applications
- 485
- Assignees
- 554
- Inventors
- 1,684
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 20 | 0 |
| 1977 | 18 | 0 |
| 1978 | 14 | 0 |
| 1979 | 11 | 0 |
| 1980 | 22 | 0 |
| 1981 | 22 | 0 |
| 1982 | 14 | 0 |
| 1983 | 17 | 0 |
| 1984 | 23 | 0 |
| 1985 | 26 | 0 |
| 1986 | 31 | 0 |
| 1987 | 9 | 0 |
| 1988 | 25 | 0 |
| 1989 | 17 | 0 |
| 1990 | 25 | 0 |
| 1991 | 16 | 0 |
| 1992 | 15 | 0 |
| 1993 | 17 | 0 |
| 1994 | 19 | 0 |
| 1995 | 6 | 0 |
| 1996 | 7 | 0 |
| 1997 | 10 | 0 |
| 1998 | 14 | 0 |
| 1999 | 23 | 0 |
| 2000 | 15 | 0 |
| 2001 | 17 | 3 |
| 2002 | 15 | 6 |
| 2003 | 14 | 15 |
| 2004 | 16 | 18 |
| 2005 | 10 | 11 |
| 2006 | 8 | 17 |
| 2007 | 3 | 14 |
| 2008 | 10 | 17 |
| 2009 | 9 | 17 |
| 2010 | 10 | 23 |
| 2011 | 9 | 13 |
| 2012 | 19 | 25 |
| 2013 | 10 | 15 |
| 2014 | 11 | 25 |
| 2015 | 12 | 25 |
| 2016 | 16 | 28 |
| 2017 | 19 | 19 |
| 2018 | 18 | 23 |
| 2019 | 17 | 17 |
| 2020 | 19 | 12 |
| 2021 | 12 | 17 |
| 2022 | 12 | 19 |
| 2023 | 12 | 27 |
| 2024 | 21 | 31 |
| 2025 | 19 | 35 |
| 2026 | 17 | 13 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Object orientation adjusting device6 Oct 2026US 12,753,020 B2NGK Insulators, Ltd.
- Heat treatment system22 Sep 2026US 12,742,596 B2NGK Insulators, Ltd.
- Method and kiln for the firing of substantially flat base ceramic articles8 Sep 2026US 12,729,855 B2Sacmi Forni & Filter S.P.A.
- Firing furnace8 Sep 2026US 12,729,914 B2Samsung Electro-Mechanics Co., Ltd.
- Heat treatment apparatus for manufacturing active material for secondary battery1 Sep 2026US 12,723,812 B2Hanwha Momentum Corporation
- Method for determining slab length and slab charging position within walking-beam heating furnace13 Aug 2026US 2026/0235361 A1Jfe Steel Corporation
- Method for operating an annealing furnace13 Aug 2026US 2026/0235362 A1SMS group GmbH
- Apparatus for vertical recycling of waste batteries30 Jul 2026US 2026/0218984 A1Rd Solution Co., Ltd
- Shuttle kiln with enhanced radiant heat retention9 Jul 2026US 2026/0194297 A1Corning Incorporated
- Tunnel kiln for the heat treatment of products, a method for operating such a tunnel kiln and the use of such a tunnel kiln25 Jun 2026US 2026/0177318 A1Riedhammer GmbH
Most cited
By later US patents
- Tunnel oven121US 4,554,437 APet Incorporated · 1985
- Insulated sleeved roll75US 6,716,147 B1Pyrotek, Inc. · 2004
- Tunnel-type conveyor oven having two types of heat sources62US 5,906,485 AReading Pretzel Machinery Corp. · 1999
- Gas floating apparatus, gas floating-transporting apparatus, and thermal treatment apparatus54US 6,336,775 B12002
- Baking furnace and control method therefor53US 5,993,202 AMatsushita Electric Industrial Co., Ltd. · 1999