B01D 71/701
Polydimethylsiloxane
Official title: {Polydimethylsiloxane}
B01D71/701 (Polydimethylsiloxane) appears on 214 US grants and 289 published applications in this corpus.
Search patents in B01D- Granted patents
- 214
- Published applications
- 289
- Assignees
- 197
- Inventors
- 813
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 4 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 4 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 4 | 0 |
| 2003 | 2 | 9 |
| 2004 | 1 | 3 |
| 2005 | 5 | 6 |
| 2006 | 1 | 4 |
| 2007 | 5 | 3 |
| 2008 | 5 | 3 |
| 2009 | 0 | 2 |
| 2010 | 3 | 3 |
| 2011 | 0 | 4 |
| 2012 | 0 | 11 |
| 2013 | 8 | 7 |
| 2014 | 4 | 12 |
| 2015 | 6 | 18 |
| 2016 | 6 | 23 |
| 2017 | 14 | 19 |
| 2018 | 20 | 21 |
| 2019 | 20 | 25 |
| 2020 | 15 | 15 |
| 2021 | 18 | 23 |
| 2022 | 6 | 11 |
| 2023 | 12 | 13 |
| 2024 | 14 | 16 |
| 2025 | 11 | 19 |
| 2026 | 9 | 19 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Gas separation membrane8 Sep 2026US 12,728,393 B2Seiko Epson Corporation
- Method for the separation of phosphorus pentafluoride from hydrogen chloride11 Aug 2026US 12,702,948 B2Mexichem Fluor S.A. De C.V.
- Organosilica membranes, methods of making same, and uses thereof11 Aug 2026US 12,702,957 B2The Research Foundation for The State University of New York
- Fluid separation membranes and use thereof7 Jul 2026US 12,673,298 B1Semicom Dwc-LLC
- Intelligent treatment device for downhole gas invasion while drilling16 Jun 2026US 12,654,129 B1Chengdu University of Technology
- Ceramic cation exchange materials13 Aug 2026US 2026/0233171 A1Membrion, Inc.
- Polymer composite thin film, gas separation body provided with polymer composite thin film, gas separation device provided with polymer composite thin film, and manufacturing method for polymer composite thin film30 Jul 2026US 2026/0216663 A1NanoMembrane Technologies, Inc.
- Film and Battery Pouch Comprising Same30 Jul 2026US 2026/0221593 A1LG Energy Solution, Ltd.
- Cross-linked Polyphosphazene-Polysiloxane Polymer for Gas Separation23 Jul 2026US 2026/0209449 A1
- Intelligent treatment device for downhole gas invasion while drilling18 Jun 2026US 2026/0166481 A1Chengdu University of Technology
Most cited
By later US patents
- Process for the manufacture of an ophthalmic molding244US 6,039,913 ANovartis AG · 2000
- Semipermeable thin-film membranes comprising siloxane, alkoxysilyl and aryloxysilyl oligomers and copolymers146US 4,781,733 ABend Research, Inc. · 1988
- Process for fabricating porous silicone product89US 5,362,761 ADow Corning Toray Silicone Co., Ltd. · 1994
- Composite gas separation membrane having a gutter layer comprising a crosslinked polar phenyl-containing - organopolysiloxane, and method for making the same -82US 5,286,280 AHoechst Celanese Corporation · 1994
- Membrane process for treating a mixture containing dewaxed oil and dewaxing solvent79US 5,093,002 ATexaco Inc. · 1992