B01D 67/006
By elimination of segments of the precursor
Official title: {by elimination of segments of the precursor, e.g. nucleation-track membranes, lithography or laser methods}
B01D67/006 (By elimination of segments of the precursor) appears on 287 US grants and 375 published applications in this corpus.
Search patents in B01D- Granted patents
- 287
- Published applications
- 375
- Assignees
- 206
- Inventors
- 889
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 8 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 8 | 0 |
| 1998 | 6 | 0 |
| 1999 | 7 | 0 |
| 2000 | 4 | 0 |
| 2001 | 1 | 1 |
| 2002 | 1 | 2 |
| 2003 | 5 | 6 |
| 2004 | 2 | 12 |
| 2005 | 2 | 11 |
| 2006 | 6 | 22 |
| 2007 | 8 | 18 |
| 2008 | 5 | 17 |
| 2009 | 12 | 16 |
| 2010 | 17 | 22 |
| 2011 | 11 | 17 |
| 2012 | 16 | 23 |
| 2013 | 16 | 18 |
| 2014 | 13 | 22 |
| 2015 | 10 | 24 |
| 2016 | 11 | 17 |
| 2017 | 19 | 11 |
| 2018 | 11 | 14 |
| 2019 | 6 | 13 |
| 2020 | 12 | 11 |
| 2021 | 17 | 17 |
| 2022 | 10 | 9 |
| 2023 | 9 | 11 |
| 2024 | 8 | 19 |
| 2025 | 9 | 12 |
| 2026 | 3 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Porous medium with adjustable fluid permeability and associated systems and methods14 Jul 2026US 12,678,743 B2Massachusetts Institute of Technology
- Nanoporous graphene membrane2 Jun 2026US 12,644,175 B2Ostia Technologies Limited
- Filtration membrane26 May 2026US 12,636,621 B2The Regents of the University of California
- Method for making porous graphene membranes and membranes produced using the method18 Nov 2025US 12,472,472 B2Heiq Materials AG
- Process for graphene membranes lattice engineering and uses thereof18 Nov 2025US 12,472,473 B2Gaznat SA
- Spray Device and Method of Manufacturing the Same6 Aug 2026US 2026/0225116 A1
- Mxene membrane with gradient pores, preparation method and application thereof23 Jul 2026US 2026/0208121 A1South China University of Technology
- Membrane for a vibrating mesh module9 Jul 2026US 2026/0192060 A1Philip Morris Products S. A.
- Selective membranes and related methods18 Jun 2026US 2026/0166478 A1Massachusetts Institute of Technology
- Filtration membrane, filtration device and manufacturing method of filtration membrane18 Jun 2026US 2026/0166495 A1Industrial Technology Research Institute
Most cited
By later US patents
- Mesoscale sample preparation device and systems for determination and processing of analytes678US 5,726,026 AThe Trustees of the University of Pennsylvania · 1998
- Mesoscale sample preparation device and systems for determination and processing of analytes335US 5,928,880 AThe Trustees of the University of Pennsylvania · 1999
- Membrane filter and a method of manufacturing the same as well as a membrane218US 5,753,014 A1998
- Micromachined fluid handling devices206US 5,839,467 AResearch International, Inc. · 1998
- Composite hydrogen separation element and module185US 5,498,278 ABend Research, Inc. · 1996