Y02P 20/129
Energy recovery
Official title: Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
Y02P20/129 (Energy recovery) appears on 2,724 US grants and 2,590 published applications in this corpus.
Search patents in Y02P- Granted patents
- 2,724
- Published applications
- 2,590
- Assignees
- 1,360
- Inventors
- 5,666
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 30 | 0 |
| 1977 | 32 | 0 |
| 1978 | 28 | 0 |
| 1979 | 21 | 0 |
| 1980 | 41 | 0 |
| 1981 | 36 | 0 |
| 1982 | 32 | 0 |
| 1983 | 34 | 0 |
| 1984 | 52 | 0 |
| 1985 | 45 | 0 |
| 1986 | 32 | 0 |
| 1987 | 34 | 0 |
| 1988 | 16 | 0 |
| 1989 | 19 | 0 |
| 1990 | 27 | 0 |
| 1991 | 37 | 0 |
| 1992 | 23 | 0 |
| 1993 | 21 | 0 |
| 1994 | 37 | 0 |
| 1995 | 17 | 0 |
| 1996 | 26 | 0 |
| 1997 | 33 | 0 |
| 1998 | 30 | 0 |
| 1999 | 42 | 0 |
| 2000 | 40 | 0 |
| 2001 | 36 | 4 |
| 2002 | 33 | 50 |
| 2003 | 28 | 52 |
| 2004 | 36 | 70 |
| 2005 | 31 | 65 |
| 2006 | 38 | 60 |
| 2007 | 38 | 76 |
| 2008 | 25 | 100 |
| 2009 | 54 | 114 |
| 2010 | 68 | 138 |
| 2011 | 77 | 155 |
| 2012 | 81 | 140 |
| 2013 | 109 | 159 |
| 2014 | 113 | 188 |
| 2015 | 125 | 153 |
| 2016 | 149 | 134 |
| 2017 | 142 | 140 |
| 2018 | 115 | 115 |
| 2019 | 119 | 104 |
| 2020 | 105 | 105 |
| 2021 | 85 | 117 |
| 2022 | 76 | 90 |
| 2023 | 76 | 100 |
| 2024 | 74 | 72 |
| 2025 | 68 | 51 |
| 2026 | 38 | 38 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- High-carbon biogenic reagents and uses thereof1 Sep 2026US 12,723,211 B2Carbon Technology Holdings, LLC
- Extraction and integration of waste heat from enhanced geologic hydrogen production25 Aug 2026US 12,716,339 B2Koloma, Inc.
- High-carbon biogenic reagents and uses thereof14 Jul 2026US 12,680,044 B2Carbon Technology Holdings, LLC
- High-carbon biogenic reagents and uses thereof7 Jul 2026US 12,674,108 B2Carbon Technology Holdings, LLC
- High-carbon biogenic reagents and uses thereof7 Jul 2026US 12,674,109 B2Carbon Technology Holdings, LLC
- Power generation and methods regarding same24 Sep 2026US 2026/0286883 A1Brilliant Light Power, Inc.
- Waste heat utilization-based bioelectrochemical ammonia recovery stack system and ammonia recovery method27 Aug 2026US 2026/0250860 A1Tianjin University
- Methanol synthesis with hydrogen recovery unit20 Aug 2026US 2026/0242313 A1Topsoe A/S
- System for producing compressed hydrogen13 Aug 2026US 2026/0234824 A1Ceres Intellectual Property Company Limited
- Extraction and integration of waste heat from enhanced geologic hydrogen production13 Aug 2026US 2026/0235020 A1Koloma, Inc.
Most cited
By later US patents
- Process for converting gas to liquids294US 6,172,124 B2Sybtroleum Corporation · 2001
- Process for producing methanol292US 4,277,416 AAminoil, USA, Inc. · 1981
- Medium-load power-generating plant with integrated coal gasification plant287US 4,608,818 AKraftwerk Union Aktiengesellschaft · 1986
- Method of producing methanol synthesis gas283US 4,994,093 AKrupp-Koppers GmbH · 1991
- Gasification apparatus for a finely divided combustible material269US 5,445,658 AKrupp-Koppers GmbH · 1995