C04B 2111/56
Compositions suited for fabrication of pipes
Official title: Compositions suited for fabrication of pipes, e.g. by centrifugal casting, or for coating concrete pipes
C04B2111/56 (Compositions suited for fabrication of pipes) appears on 40 US grants and 36 published applications in this corpus.
Search patents in C04B- Granted patents
- 40
- Published applications
- 36
- Assignees
- 43
- Inventors
- 144
- Latest grant
- 28 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 4 | 0 |
| 1996 | 4 | 0 |
| 1997 | 7 | 0 |
| 1998 | 4 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 1 | 8 |
| 2006 | 0 | 2 |
| 2007 | 1 | 1 |
| 2008 | 1 | 0 |
| 2009 | 0 | 1 |
| 2010 | 1 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 1 | 3 |
| 2015 | 0 | 2 |
| 2016 | 1 | 0 |
| 2017 | 1 | 0 |
| 2018 | 0 | 1 |
| 2019 | 1 | 1 |
| 2020 | 1 | 2 |
| 2021 | 1 | 2 |
| 2022 | 1 | 1 |
| 2023 | 0 | 0 |
| 2024 | 1 | 5 |
| 2025 | 2 | 2 |
| 2026 | 0 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Anticorrosive composition28 Oct 2025US 12,454,488 B2Rockwool A/S
- Anticorrosive composition30 Sep 2025US 12,428,346 B2Rockwool A/S
- Method of manufacturing concrete products with additives29 Oct 2024US 12,129,207 B2Carbicrete Inc.
- Composition and method for making geopolymer tubes28 Jun 2022US 11,370,705 B2Novoreach Technologies LLC
- Aerogel containing construction board9 Feb 2021US 10,914,071 B2Johns Manville
- Multi-layered cementitious composition prefabricated prismatic member27 Aug 2026US 2026/0249589 A1
- Anticorrosive composition29 Jan 2026US 2026/0028284 A1Rockwool A/S
- Core wall-thinning design method for prestressed high-performance concrete cylinder pipe22 Jan 2026US 2026/0022072 A1Zhengzhou University
- Novel pre-stressed concrete cylinder pipe with pre-embedded acoustic emission sensor and distributed optical fiber, and manufacturing and monitoring methods thereof15 Jan 2026US 2026/0016448 A1Beijing Hanjianheshan Pipeline Co., Ltd
- Anticorrosive composition25 Sep 2025US 2025/0296881 A1Roickwool A/S
Most cited
By later US patents
- Highly insulative cementitious matrices and methods for their manufacture157US 5,641,584 AE. Khashoggi Industries · 1997
- Rubber-crumb-reinforced cement concrete49US 5,391,226 ATiremix Corporation · 1995
- Superplasticizer-concrete composition for waste disposal34US 5,551,976 AUnion Oil Company of California · 1996
- Superplasticizer-concrete composition and method of preparation29US 5,525,155 AUnion Oil Company of California · 1996
- High density artificial stone and a method for producing therefor22US 5,422,391 ADoppel Co., Ltd. · 1995