C04B 2111/40
Porous or lightweight materials
C04B2111/40 (Porous or lightweight materials) appears on 311 US grants and 443 published applications in this corpus.
Search patents in C04B- Granted patents
- 311
- Published applications
- 443
- Assignees
- 257
- Inventors
- 971
- Latest grant
- 22 Sep 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 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 5 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 4 | 4 |
| 2003 | 3 | 5 |
| 2004 | 3 | 8 |
| 2005 | 2 | 8 |
| 2006 | 3 | 8 |
| 2007 | 1 | 9 |
| 2008 | 3 | 11 |
| 2009 | 4 | 4 |
| 2010 | 17 | 12 |
| 2011 | 8 | 9 |
| 2012 | 9 | 12 |
| 2013 | 11 | 18 |
| 2014 | 9 | 13 |
| 2015 | 11 | 20 |
| 2016 | 8 | 17 |
| 2017 | 16 | 23 |
| 2018 | 18 | 28 |
| 2019 | 23 | 34 |
| 2020 | 27 | 24 |
| 2021 | 20 | 29 |
| 2022 | 16 | 36 |
| 2023 | 10 | 32 |
| 2024 | 26 | 29 |
| 2025 | 26 | 31 |
| 2026 | 15 | 19 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Light weight ceramic aggregates made by agglomerating ceramic fibers22 Sep 2026US 12,741,908 B2Unifrax I LLC
- Flexible composite25 Aug 2026US 12,716,020 B2Concrete Canvas Technology Ltd.
- Method for the refurbishment of porous construction materials28 Jul 2026US 12,692,194 B2Sika Technology AG
- Heat and fire resistant geopolymer materials21 Jul 2026US 12,686,637 B2
- Admixture composition for the production of lightweight concrete containing polystyrene beads, process for the preparation of the composition and its application9 Jun 2026US 12,649,691 B2“Icl” Innovation Concrete Laboratory KorláToit FelelsséGü TáRasasáG
- Highly absorbent sponge concrete1 Oct 2026US 2026/0296973 A1Amrize Technology Switzerland LLC
- Composition for adjusting of air pores in building products in the presence of sulfate-based superplasticizers1 Oct 2026US 2026/0296976 A1BASF SE
- Highly absorbant mineral sponge17 Sep 2026US 2026/0274759 A1Amrize Technology Switerland LLC
- High-voltage depletion-mode current source, transistor, and fabrication methods20 Aug 2026US 2026/0242281 A1Texas Instruments Incorporated
- Lightweight ceramics2 Jul 2026US 2026/0184639 A1ImerTech SAS
Most cited
By later US patents
- Zeolite-based lightweight concrete products125US 5,494,513 ANational Research Council of Canada · 1996
- Lightweight well cement compositions and methods119US 6,776,237 B2Halliburton Energy Services.Inc. · 2004
- Lightweight well cement compositions and methods112US 6,562,122 B2Halliburton Energy Services.Inc. · 2003
- High performance non-combustible gypsum-cement compositions with enhanced water durability and thermal stability for reinforced cementitious lightweight structural cement panels109US 8,038,790 B1United States Gypsum Company · 2011
- Thermostructural composite structure with a compositional gradient, its manufacturing process98US 7,560,139 B2Snecma Propulsion Solide · 2009