E04G 15/00
Forms or shutterings for making openings, cavities, slits, or channels
Official title: Forms or shutterings for making openings, cavities, slits, or channels (forming part of shuttering for walls E04G11/06 {, e.g. double walls E04G11/18; prefabricated elements with elements wholly or partly embedded therein B28B23/00; core or mandrels for the prefabrication of concrete elements B28B7/28})
E04G15/00 (Forms or shutterings for making openings, cavities, slits, or channels) appears on 431 US grants and 378 published applications in this corpus.
Search patents in E04G- Granted patents
- 431
- Published applications
- 378
- Assignees
- 216
- Inventors
- 681
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 9 | 0 |
| 1978 | 4 | 0 |
| 1979 | 5 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 4 | 0 |
| 1983 | 5 | 0 |
| 1984 | 7 | 0 |
| 1985 | 2 | 0 |
| 1986 | 8 | 0 |
| 1987 | 6 | 0 |
| 1988 | 2 | 0 |
| 1989 | 10 | 0 |
| 1990 | 3 | 0 |
| 1991 | 3 | 0 |
| 1992 | 6 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 7 | 0 |
| 1996 | 5 | 0 |
| 1997 | 5 | 0 |
| 1998 | 8 | 0 |
| 1999 | 7 | 0 |
| 2000 | 12 | 0 |
| 2001 | 7 | 3 |
| 2002 | 12 | 8 |
| 2003 | 10 | 15 |
| 2004 | 13 | 24 |
| 2005 | 4 | 19 |
| 2006 | 13 | 18 |
| 2007 | 5 | 22 |
| 2008 | 6 | 8 |
| 2009 | 9 | 13 |
| 2010 | 8 | 14 |
| 2011 | 11 | 11 |
| 2012 | 10 | 6 |
| 2013 | 10 | 9 |
| 2014 | 12 | 14 |
| 2015 | 9 | 14 |
| 2016 | 15 | 16 |
| 2017 | 12 | 22 |
| 2018 | 13 | 16 |
| 2019 | 12 | 16 |
| 2020 | 26 | 18 |
| 2021 | 16 | 28 |
| 2022 | 18 | 13 |
| 2023 | 14 | 14 |
| 2024 | 11 | 15 |
| 2025 | 17 | 9 |
| 2026 | 7 | 13 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Framing system for assisting with installation of an object within a wall25 Aug 2026US 12,716,287 B2Altus Group, Inc.
- Fire rated floor box installation assembly25 Aug 2026US 12,719,248 B2Hubbell Incorporated
- Insulating concrete form buck14 Jul 2026US 12,680,371 B2
- Cast-in-place through-penetration firestop device7 Jul 2026US 12,674,527 B2Hilti Aktiengesellschaft
- Roadway coverplate12 May 2026US 12,623,556 B2Mahle International GmbH
- Article for use in industrial facilities24 Sep 2026US 2026/0286728 A1Ross Corporation
- Cast-in-place through-penetration firestop device24 Sep 2026US 2026/0287090 A1Hilti Aktiengesellschaft
- Apparatus and Method for Spacing a Drainpipe20 Aug 2026US 2026/0243092 A1Easy Sleeve, LLC
- Double-support fastening device for a shuttered structure13 Aug 2026US 2026/0235146 A1A. Raymond Et Cie
- Method for assembling a formwork unit16 Jul 2026US 2026/0201713 A1Doka GmbH
Most cited
By later US patents
- Holder adapted for supporting an anchor insert to be embedded in a concrete slab96US 4,000,591 ASuperior Concrete Accessories, Inc. · 1977
- Window buck and frame92US 4,430,831 ABowman & Kemp Steel & Supply, Inc. · 1984
- Recess plug for precast concrete panels74US 4,807,843 ADayton Superior Corporation · 1989
- Floor drain installation system67US 8,347,906 B1Sioux Chief Mfg. Co., Inc. · 2013
- Coupling66US 4,623,170 A1986