F27D 99/00
Subject matter not provided for in other groups of this subclass
F27D99/00 (Subject matter not provided for in other groups of this subclass) appears on 1,515 US grants and 1,084 published applications in this corpus.
Search patents in F27D- Granted patents
- 1,515
- Published applications
- 1,084
- Assignees
- 1,011
- Inventors
- 3,449
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 12 | 0 |
| 1977 | 12 | 0 |
| 1978 | 9 | 0 |
| 1979 | 9 | 0 |
| 1980 | 19 | 0 |
| 1981 | 19 | 0 |
| 1982 | 12 | 0 |
| 1983 | 18 | 0 |
| 1984 | 29 | 0 |
| 1985 | 40 | 0 |
| 1986 | 29 | 0 |
| 1987 | 29 | 0 |
| 1988 | 30 | 0 |
| 1989 | 25 | 0 |
| 1990 | 31 | 0 |
| 1991 | 25 | 0 |
| 1992 | 24 | 0 |
| 1993 | 31 | 0 |
| 1994 | 43 | 0 |
| 1995 | 25 | 0 |
| 1996 | 39 | 0 |
| 1997 | 41 | 0 |
| 1998 | 47 | 0 |
| 1999 | 52 | 0 |
| 2000 | 55 | 0 |
| 2001 | 35 | 16 |
| 2002 | 57 | 42 |
| 2003 | 44 | 41 |
| 2004 | 38 | 33 |
| 2005 | 22 | 32 |
| 2006 | 17 | 25 |
| 2007 | 15 | 33 |
| 2008 | 18 | 29 |
| 2009 | 9 | 34 |
| 2010 | 20 | 50 |
| 2011 | 12 | 41 |
| 2012 | 23 | 41 |
| 2013 | 33 | 51 |
| 2014 | 33 | 50 |
| 2015 | 38 | 69 |
| 2016 | 43 | 67 |
| 2017 | 45 | 35 |
| 2018 | 47 | 44 |
| 2019 | 54 | 40 |
| 2020 | 43 | 42 |
| 2021 | 21 | 37 |
| 2022 | 35 | 32 |
| 2023 | 31 | 52 |
| 2024 | 23 | 44 |
| 2025 | 31 | 48 |
| 2026 | 23 | 56 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Sealing structure of horizontal rotary pyrolysis kiln1 Sep 2026US 12,723,811 B2Henan Longcheng Coal High Efficiency Technology Application Co., Ltd.
- Method for providing a rotating shaft into a high pressure, high temperature furnace1 Sep 2026US 12,723,814 B2The Florida State University Research Foundation, Inc.
- Method for providing a rotating shaft into a high pressure, high temperature furnace1 Sep 2026US 12,723,815 B2The Florida State University Research Foundation, Inc.
- Method and device for heating a furnace18 Aug 2026US 12,710,173 B2Linde Aktiengesellschaft
- High pressure heat treatment apparatus4 Aug 2026US 12,698,939 B2HPSP Co., Ltd.
- Heat treatment apparatus8 Oct 2026US 2026/0309423 A1Tokyo Electron Limited
- Method for flame control in a rotary lime kiln1 Oct 2026US 2026/0298539 A1Valmet Corporation
- Method and device for plasma heating of the internal walls of a vacuum furnace1 Oct 2026US 2026/0302140 A1
- Apparatus and method for heat treatment of wood24 Sep 2026US 2026/0286227 A1
- Method for the heat treatment of a bi-material metal part and device for carrying out the method24 Sep 2026US 2026/0286853 A1Safran
Most cited
By later US patents
- Rapid thermal heating apparatus and method220US 5,155,336 AAPPLIED Materials.Inc. · 1992
- Method and apparatus for fabrication of cobalt alloy composite inserts211US 6,063,333 ADennis Tool Company · 2000
- Method of heating semiconductor wafers in order to achieve annealing, silicide formation, reflow of glass passivation layers, etc.145US 4,698,486 ATamarack Scientific Co., Inc. · 1987
- Apparatus for heating semiconductor wafers in order to achieve annealing, silicide formation, reflow of glass passivation layers, etc.140US 4,649,261 ATamarack Scientific Co., Inc. · 1987
- Low temperature, low pressure, ductile, bonded cermet for enhanced abrasion and erosion performance129US 5,641,921 ADennis Tool Company · 1997