B01D 69/127
Using electrical discharge or plasma-polymerisation
Official title: {using electrical discharge or plasma-polymerisation}
B01D69/127 (Using electrical discharge or plasma-polymerisation) appears on 53 US grants and 33 published applications in this corpus.
Search patents in B01D- Granted patents
- 53
- Published applications
- 33
- Assignees
- 48
- Inventors
- 140
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 4 | 0 |
| 1997 | 0 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 2 |
| 2007 | 0 | 0 |
| 2008 | 1 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 3 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 0 | 2 |
| 2015 | 1 | 6 |
| 2016 | 1 | 2 |
| 2017 | 4 | 3 |
| 2018 | 3 | 4 |
| 2019 | 0 | 1 |
| 2020 | 3 | 1 |
| 2021 | 1 | 1 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 4 |
| 2025 | 0 | 0 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Polymeric fabric19 May 2026US 12,629,920 B2Sefar AG
- Gas separation membranes28 Apr 2026US 12,611,635 B2FUJIFILM Corporation
- Protective-layer-covered gas separation membrane, method for producing protective-layer-covered gas separation membrane, gas separation membrane module, and gas separation apparatus2 Feb 2021US 10,906,008 B2FUJIFILM Corporation
- Method for producing protective-layer-covered gas separation membrane, protective-layer-covered gas separation membrane, gas separation membrane module, and gas separation apparatus24 Nov 2020US 10,843,137 B2FUJIFILM Corporation
- Asymmetric articles with a porous substrate and a polymeric coating extending into the substrate and methods of making the same20 Oct 2020US 10,807,046 B23M Innovative Properties Company
- Conductive base membrane and preparation method thereof24 Sep 2026US 2026/0284606 A1Beijing Baoshengtong International Electrical Engineering Technology Co., Ltd.
- Gas Separation Membrane5 Dec 2024US 2024/0399300 A1Seiko Epson Corporation
- Gas Separation Membranes15 Aug 2024US 2024/0269620 A1FUJIFILM Corporation
- Gas Separation Membranes30 May 2024US 2024/0173679 A1
- Gas separation membrane and method of producing gas separation membrane21 Mar 2024US 2024/0091717 A1Seiko Epson Corporation
Most cited
By later US patents
- Method of producing a reactive coating by after-glow plasma polymerization77US 6,436,481 B1Novartis AG · 2002
- Gas permeable thrombo-resistant coatings and methods of manufacture72US 5,338,770 ACardiopulmonics, Inc. · 1994
- Multifunctional thrombo-resistant coatings and methods of manufacture71US 5,262,451 ACardiopulmonics, Inc. · 1993
- Gas plasma polymerized permselective membrane71US 5,439,736 ANeoMecs Incorporated · 1995
- Gas permselective composite membrane prepared by plasma polymerization coating techniques67US 4,824,444 AApplied Membrane Technology, Inc. · 1989