C04B 26/16
Polyurethanes
C04B26/16 (Polyurethanes) appears on 188 US grants and 287 published applications in this corpus.
Search patents in C04B- Granted patents
- 188
- Published applications
- 287
- Assignees
- 148
- Inventors
- 559
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 5 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 1 |
| 2003 | 2 | 5 |
| 2004 | 2 | 1 |
| 2005 | 0 | 6 |
| 2006 | 1 | 7 |
| 2007 | 0 | 9 |
| 2008 | 2 | 6 |
| 2009 | 1 | 5 |
| 2010 | 4 | 10 |
| 2011 | 6 | 16 |
| 2012 | 4 | 15 |
| 2013 | 4 | 11 |
| 2014 | 10 | 21 |
| 2015 | 9 | 14 |
| 2016 | 14 | 13 |
| 2017 | 9 | 18 |
| 2018 | 10 | 16 |
| 2019 | 18 | 15 |
| 2020 | 14 | 18 |
| 2021 | 8 | 18 |
| 2022 | 7 | 21 |
| 2023 | 7 | 16 |
| 2024 | 12 | 13 |
| 2025 | 12 | 8 |
| 2026 | 3 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Inorganic aggregate polyurethane (PU) terrazzo flooring, and preparation method and use thereof25 Aug 2026US 12,716,245 B2Shanghai Yanhuang Environmental Technology Co., Ltd.
- 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
- Solder-carbon nanostructure composites and methods of making and using thereof19 May 2026US 12,629,784 B2Carbice Corporation
- Use of reaction resin mixtures with predefined polarity for setting the robustness of a mortar composition and method for setting the robustness of a mortar composition16 Dec 2025US 12,497,330 B2Hilti Aktiengesellschaft
- Lightweight composite material having a scratch-resistant surface and method for the production thereof11 Nov 2025US 12,466,768 B2Gebruder Dorfner GmbH & Co. Kaolin- und Kristallquarzsand-Werke KG
- A structural composite material and compositions and methods for the production thereof27 Aug 2026US 2026/0250195 A1Sunrise Envirotech Pty Ltd
- Systems and methods for releasing muscular tension25 Jun 2026US 2026/0174620 A1
- Method, apparatus, device, and medium for simulatingpolyurethane permeation grouting diffusion30 Apr 2026US 2026/0116821 A1Sun Yat-Sen University
- Curable precursor of an adhesive composition comprising calcium hydroxide nitrate particles12 Feb 2026US 2026/0042943 A13M Innovative Properties Company
- Method for manufacturing an engineered stone and an engineered stone30 Oct 2025US 2025/0332757 A1Dal-Tile, LLC
Most cited
By later US patents
- Cured unsaturated polyest-polyurethane highly filled resin materials and process for preparing them77US 5,604,266 AEcomat, Inc. · 1997
- Reinforced foam composites comprising hydroxy-containing vinyl ester resin73US 5,091,436 A1992
- Composition for reinforced and filled high density rigid polyurethane foam products and method of making same66US 4,005,035 ATecnik International Corporation · 1977
- Plasticised gypsum composition62US 5,344,490 AAccuflex Products, Inc. · 1994
- High-strength composite material and process for producing the same43US 5,391,437 ANippon Kayaku Kabushiki Kaisha · 1995