E04H 5/04
Transformer houses
Official title: Transformer houses; Substations or switchgear houses
E04H5/04 (Transformer houses) appears on 42 US grants and 48 published applications in this corpus.
Search patents in E04H- Granted patents
- 42
- Published applications
- 48
- Assignees
- 40
- Inventors
- 124
- Latest grant
- 26 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 2 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 4 |
| 2009 | 1 | 1 |
| 2010 | 1 | 0 |
| 2011 | 1 | 1 |
| 2012 | 1 | 3 |
| 2013 | 0 | 2 |
| 2014 | 1 | 1 |
| 2015 | 1 | 2 |
| 2016 | 0 | 1 |
| 2017 | 2 | 5 |
| 2018 | 2 | 7 |
| 2019 | 6 | 3 |
| 2020 | 3 | 3 |
| 2021 | 2 | 6 |
| 2022 | 4 | 1 |
| 2023 | 4 | 0 |
| 2024 | 1 | 3 |
| 2025 | 1 | 2 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Modularized thermal management26 May 2026US 12,638,253 B2Caterpillar Inc.
- Electrical transformation substation19 May 2026US 12,633,729 B2Unareti S.P.A.
- Energy room as an energy center8 Apr 2025US 12,270,195 B2
- Fall protection system for electrical transformers16 Apr 2024US 11,959,291 B2Consolidated Edison Company of New York, Inc.
- Protective barriers and related methods17 Oct 2023US 11,788,320 B2Battelle Energy Alliance, LLC
- Modular unit for apparatus installation26 Mar 2026US 2026/0085512 A1
- Prefabricated Alternating-Current Integrated Power Module29 May 2025US 2025/0176125 A1Vertiv Tech Co., Ltd.
- Modularized thermal management16 Jan 2025US 2025/0020418 A1Caterpillar Inc.
- Electrical transformation substation29 Aug 2024US 2024/0291247 A1Unareti S.P.A.
- Energy Room as an Energy Center29 Feb 2024US 2024/0068225 A1
Most cited
By later US patents
- Mechanism for locking two halves of an underground vault64US 4,333,580 AAssociated Plastics, Inc. · 1982
- Modular power generation facilities using shipping container-based modules41US 10,340,696 B2PowerSecure, Inc. · 2019
- Enclosure for telecommunications equipment33US 5,315,794 AProfessional Systems, Inc. · 1994
- Passively cooled and heated electrical components and power building24US 7,793,467 B12010
- Structure for telecommunications equipment enclosure23US 5,560,150 AProfessional Systems, Inc. · 1996