D21F 7/083
Multi-layer felts
Official title: {Multi-layer felts}
D21F7/083 (Multi-layer felts) appears on 451 US grants and 373 published applications in this corpus.
Search patents in D21F- Granted patents
- 451
- Published applications
- 373
- Assignees
- 93
- Inventors
- 508
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 4 | 0 |
| 1981 | 5 | 0 |
| 1982 | 4 | 0 |
| 1983 | 4 | 0 |
| 1984 | 8 | 0 |
| 1985 | 7 | 0 |
| 1986 | 8 | 0 |
| 1987 | 5 | 0 |
| 1988 | 10 | 0 |
| 1989 | 16 | 0 |
| 1990 | 6 | 0 |
| 1991 | 6 | 0 |
| 1992 | 10 | 0 |
| 1993 | 12 | 0 |
| 1994 | 10 | 0 |
| 1995 | 4 | 0 |
| 1996 | 5 | 0 |
| 1997 | 6 | 0 |
| 1998 | 7 | 0 |
| 1999 | 11 | 0 |
| 2000 | 13 | 0 |
| 2001 | 14 | 1 |
| 2002 | 9 | 12 |
| 2003 | 13 | 10 |
| 2004 | 14 | 25 |
| 2005 | 4 | 24 |
| 2006 | 15 | 24 |
| 2007 | 11 | 33 |
| 2008 | 12 | 16 |
| 2009 | 11 | 23 |
| 2010 | 18 | 31 |
| 2011 | 13 | 14 |
| 2012 | 19 | 12 |
| 2013 | 17 | 7 |
| 2014 | 11 | 4 |
| 2015 | 3 | 5 |
| 2016 | 7 | 8 |
| 2017 | 1 | 7 |
| 2018 | 8 | 8 |
| 2019 | 8 | 18 |
| 2020 | 13 | 4 |
| 2021 | 11 | 21 |
| 2022 | 11 | 11 |
| 2023 | 10 | 14 |
| 2024 | 13 | 20 |
| 2025 | 10 | 8 |
| 2026 | 9 | 13 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Web material structuring belt comprising a seam and method for making and using6 Oct 2026US 12,753,552 B2The Procter & Gamble Company
- Industrial fabric18 Aug 2026US 12,709,822 B2Nippon Filcon Co., Ltd.
- Web material structuring belt, method for making and method for using18 Aug 2026US 12,709,841 B2The Procter & Gamble Company
- Paper making machine and process14 Jul 2026US 12,680,230 B2Toscotec S.P.A.
- Paper machine clothing and method30 Jun 2026US 12,668,924 B2Voith Patent GmbH
- Multi-ply tissue products and methods of manufacturing the same17 Sep 2026US 2026/0275646 A1Kimberly-Clark Worldwide, Inc.
- Seamable, gap-free paper-making fabrics13 Aug 2026US 2026/0234868 A1Albany International Corp.
- Multi-axial pulp making felt and method of making6 Aug 2026US 2026/0226683 A1AstenJohnson International, Inc.
- Press fabrics23 Jul 2026US 2026/0210003 A1
- Base fabric for seamed felt, papermaking felt, and method for producing papermaking felt4 Jun 2026US 2026/0152903 A1Ichikawa Co., Ltd.
Most cited
By later US patents
- Press felt and method of manufacturing it129US 5,360,656 AAlbany International Corp. · 1994
- Press felt having fine base fabric103US 5,618,612 AHuyck Licensco, Inc. · 1997
- Papermakers fabric with stacked machine direction yarns93US 5,103,874 AAsten Group, Inc. · 1992
- Woven papermakers fabric having flat yarn floats91US 5,449,026 AAsten, Inc. · 1995
- Papermaker's grooved back felt89US 4,382,987 AHuyck Corporation · 1983