C04B 35/6342
Polyvinylacetals
Official title: {Polyvinylacetals, e.g. polyvinylbutyral [PVB]}
C04B35/6342 (Polyvinylacetals) appears on 281 US grants and 343 published applications in this corpus.
Search patents in C04B- Granted patents
- 281
- Published applications
- 343
- Assignees
- 178
- Inventors
- 916
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 3 | 0 |
| 1978 | 1 | 0 |
| 1979 | 3 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 3 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 6 | 0 |
| 1991 | 11 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 5 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 4 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 3 | 2 |
| 2003 | 2 | 4 |
| 2004 | 4 | 10 |
| 2005 | 1 | 2 |
| 2006 | 6 | 11 |
| 2007 | 2 | 11 |
| 2008 | 4 | 8 |
| 2009 | 3 | 15 |
| 2010 | 10 | 9 |
| 2011 | 7 | 11 |
| 2012 | 13 | 12 |
| 2013 | 11 | 18 |
| 2014 | 9 | 5 |
| 2015 | 7 | 5 |
| 2016 | 7 | 5 |
| 2017 | 4 | 17 |
| 2018 | 9 | 24 |
| 2019 | 18 | 17 |
| 2020 | 14 | 15 |
| 2021 | 9 | 19 |
| 2022 | 13 | 21 |
| 2023 | 13 | 27 |
| 2024 | 19 | 31 |
| 2025 | 19 | 29 |
| 2026 | 10 | 15 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- High-entropy carbide ceramic and rare earth-containing high-entropy carbide ceramic, fibers and precursors thereof, and methods for preparing the same11 Aug 2026US 12,703,667 B2Institute of Chemistry, Chinese Academy of Sciences
- Dielectric for a capacitor and a method of manufacturing same4 Aug 2026US 12,700,541 B2Hyundai Motor Company
- Dielectric material and multilayer ceramic capacitor including the same14 Jul 2026US 12,683,076 B2Samsung Electro-Mechanics Co., Ltd.
- Gradient structure cubic boron nitride composite sheet and preparation method thereof30 Jun 2026US 12,668,549 B2Central South University
- Ferroelectric-piezoelectric ceramic energy storage materials, hybrid process preparation methods, and use thereof5 May 2026US 12,620,529 B1Tongji University
- Cmc having roughened surfaces for improved heat transfer24 Sep 2026US 2026/0285769 A1Rtx Corporation
- Method for preparing spherical aluminum nitride powder with high flowability20 Aug 2026US 2026/0242297 A1National Chung Shan Institute of Science and Technology
- Machined ceramic matrix composite airfoil preform and method13 Aug 2026US 2026/0235035 A1Rtx Corporation
- Slurry infiltration of sacrificial material23 Jul 2026US 2026/0209127 A1Rtx Corporation
- Composite powder containing yttria and method for manufacturing same11 Jun 2026US 2026/0159449 A1Komico Ltd.
Most cited
By later US patents
- Polyhydroxyalkanoate molding compositions71US 6,071,998 AMetabolix, Inc. · 2000
- Method for producing ceramic cellular structure having high cell density70US 4,017,347 AGTE Sylvania Incorporated · 1977
- Preparation of powder articles having improved green strength62US 5,215,946 AAllied-Signal Inc. · 1993
- Method of bonding inorganic particulate material52US 4,772,346 AInternational Business Machines Corporation · 1988
- Process for the elimination of dimensional changes in ceramic green sheets50US 3,953,562 AInternational Business Machines Corporation · 1976