E04G 13/021
For circular columns
Official title: {for circular columns}
E04G13/021 (For circular columns) appears on 58 US grants and 57 published applications in this corpus.
Search patents in E04G- Granted patents
- 58
- Published applications
- 57
- Assignees
- 36
- Inventors
- 105
- Latest grant
- 8 Apr 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 4 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 3 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 2 |
| 2004 | 0 | 1 |
| 2005 | 1 | 4 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 6 |
| 2009 | 1 | 2 |
| 2010 | 1 | 3 |
| 2011 | 0 | 1 |
| 2012 | 2 | 2 |
| 2013 | 2 | 2 |
| 2014 | 0 | 6 |
| 2015 | 3 | 3 |
| 2016 | 2 | 3 |
| 2017 | 4 | 5 |
| 2018 | 2 | 0 |
| 2019 | 4 | 1 |
| 2020 | 0 | 3 |
| 2021 | 0 | 1 |
| 2022 | 3 | 6 |
| 2023 | 1 | 2 |
| 2024 | 3 | 0 |
| 2025 | 3 | 0 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Column forming system8 Apr 2025US 12,270,211 B2Ellis Formwork Manufacturing, LLC
- TRE assemble permanent column formwork and manufacturing method thereof25 Feb 2025US 12,234,657 B2China University of Mining and Technology
- Formwork system14 Jan 2025US 12,195,961 B2Apache Industrial Services, Inc.
- Support waler and method of striking formwork9 Jul 2024US 12,031,340 B1PERI Formwork Systems, Inc.
- System and method for round column construction18 Jun 2024US 12,012,768 B2OceanLink USA, Inc.
- Method of installing and supporting a fabric form, and a bracket therefor30 Apr 2026US 2026/0117535 A1Fab-Form Industries Ltd.
- System for Forming Ventilated Crawl Spaces or Interspaces or Elevated Platforms Composed by Dome-Shaped Formwork Elements Supported on Supporting Tubes Resting on a Foundation or on a Surface8 Jan 2026US 2026/0009221 A1Daliform Group S.R.L.
- Enclosure Device for Concrete Column Formwork17 Aug 2023US 2023/0258008 A1
- Concrete forming tube5 Jan 2023US 2023/0002995 A1
- Systems, devices, and methods for molding structures24 Nov 2022US 2022/0372775 A1Create A Castle, LLC
Most cited
By later US patents
- Method and an apparatus for producing fabric-reinforced lining supports or slender supporting structural units39US 4,983,077 AGebhardt & Koenig-Gesteins- und Tiefbau GmbH · 1991
- Concrete column forming assembly38US 8,485,493 B2SoundFootings, LLC · 2013
- Concrete column form23US 5,255,888 ADeslauriers, Inc. · 1993
- Method and apparatus for casting a concrete column18US 3,956,437 A1976
- Concrete column form16US 3,990,672 A1976