F25B 2500/01
Geometry problems
Official title: Geometry problems, e.g. for reducing size
F25B2500/01 (Geometry problems) appears on 769 US grants and 784 published applications in this corpus.
Search patents in F25B- Granted patents
- 769
- Published applications
- 784
- Assignees
- 355
- Inventors
- 1,875
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 4 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 8 | 0 |
| 1988 | 7 | 0 |
| 1989 | 2 | 0 |
| 1990 | 7 | 0 |
| 1991 | 12 | 0 |
| 1992 | 4 | 0 |
| 1993 | 10 | 0 |
| 1994 | 14 | 0 |
| 1995 | 5 | 0 |
| 1996 | 7 | 0 |
| 1997 | 18 | 0 |
| 1998 | 15 | 0 |
| 1999 | 19 | 0 |
| 2000 | 17 | 0 |
| 2001 | 28 | 12 |
| 2002 | 39 | 30 |
| 2003 | 33 | 29 |
| 2004 | 29 | 43 |
| 2005 | 30 | 61 |
| 2006 | 36 | 60 |
| 2007 | 27 | 39 |
| 2008 | 16 | 57 |
| 2009 | 17 | 38 |
| 2010 | 28 | 31 |
| 2011 | 16 | 34 |
| 2012 | 19 | 17 |
| 2013 | 20 | 31 |
| 2014 | 14 | 23 |
| 2015 | 19 | 31 |
| 2016 | 14 | 38 |
| 2017 | 30 | 42 |
| 2018 | 36 | 17 |
| 2019 | 31 | 36 |
| 2020 | 25 | 21 |
| 2021 | 17 | 9 |
| 2022 | 16 | 25 |
| 2023 | 15 | 15 |
| 2024 | 21 | 20 |
| 2025 | 20 | 14 |
| 2026 | 6 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Cryogenic cooling system5 May 2026US 12,618,593 B2Oxford NanoScience Limited
- Heat pump7 Apr 2026US 12,595,940 B2Viessmann Climate Solutions SE
- Cryogenic cooling system1 Oct 2026US 2026/0298507 A1Oxford NanoScience Limited
- Spatio-thermal energy modulation vessel with embedded conductive framework17 Sep 2026US 2026/0276259 A1
- Integrated cooling module17 Sep 2026US 2026/0276266 A1Hanon Systems
- Cryogenic cooling system3 Sep 2026US 2026/0258986 A1Oxford NanoScience Limited
- Cryogenic cooling system20 Aug 2026US 2026/0243476 A1Oxford NanoScience Limited
Most cited
By later US patents
- Efficiency thermoelectrics utilizing thermal isolation179US 6,539,725 B2Bsst LLC · 2003
- Temperature control device and method for manufacturing the same153US 6,347,521 B1Komatsu Ltd. · 2002
- Combined ambient-air and earth exchange heat pump system141US 5,461,876 A1995
- Geothermal heat pump system116US 5,758,514 AEnvirotherm Heating & Cooling Systems, Inc. · 1998
- Cryoprobe115US 5,800,487 AEndocare, Inc. · 1998