B29L 2031/4835
Masks
Official title: {Masks}
B29L2031/4835 (Masks) appears on 78 US grants and 103 published applications in this corpus.
Search patents in B29L- Granted patents
- 78
- Published applications
- 103
- Assignees
- 51
- Inventors
- 193
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 3 | 0 |
| 1998 | 7 | 0 |
| 1999 | 4 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 2 |
| 2003 | 0 | 0 |
| 2004 | 2 | 1 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 5 |
| 2009 | 1 | 3 |
| 2010 | 2 | 4 |
| 2011 | 1 | 6 |
| 2012 | 1 | 2 |
| 2013 | 1 | 2 |
| 2014 | 4 | 3 |
| 2015 | 4 | 11 |
| 2016 | 1 | 6 |
| 2017 | 0 | 2 |
| 2018 | 2 | 9 |
| 2019 | 7 | 6 |
| 2020 | 5 | 5 |
| 2021 | 2 | 5 |
| 2022 | 6 | 10 |
| 2023 | 3 | 10 |
| 2024 | 4 | 4 |
| 2025 | 6 | 1 |
| 2026 | 1 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Sealing members4 Aug 2026US 12,697,454 B2Intersurgical AG
- Multifunctional respiratory protective face mask30 Dec 2025US 12,508,452 B2
- Thermoformed mask11 Nov 2025US 12,465,710 B2Fisher & Paykel Healthcare Limited
- Ultrasonic welding of fabrics for sleep apnea treatment9 Sep 2025US 12,409,292 B2ResMed Pty Ltd
- Method for recycling filtering facepiece respirators5 Aug 2025US 12,377,582 B2Arkema France
- Patient Interface Assembly with Thermoformable Seal17 Sep 2026US 2026/0273215 A1Medlands Consulting Limited
- Method of manufacturing a full-face mask for an air purifying respirator and such a mask27 Aug 2026US 2026/0249109 A1Tiki Safety AB
- Thermoformed mask21 May 2026US 2026/0137889 A1Fisher & Paykel Healthcare Limited
- Manufacturing method for cellulose molded body and cellulose molded body19 Feb 2026US 2026/0048556 A1Futamura Kagaku Kabushiki Kaisha
- Ultrasonic welding of fabrics for sleep apnea treatment22 Jan 2026US 2026/0021267 A1ResMed Pty Ltd
Most cited
By later US patents
- Sealing lip device for a respiratory mask, respiratory mask and a method and a mould for producing the same309US 7,827,990 B1MAP Medizin-Technologie GmbH · 2010
- Face protector181US 5,003,633 AItoh Seiki Kabushiki Kaisha · 1991
- Breathing mask and a sealing lip device for a breathing mask132US 9,242,062 B2ResMed R&D Germany GmbH · 2016
- Face masks having an elastic and polyolefin thermoplastic band attached thereto by heat and pressure121US 6,332,465 B13M Innovative Properties Company · 2001
- Respiratory mask having a rigid or semi-rigid, insert-molded filtration element and method of making110US 4,790,306 AMinnesota Mining and Manufacturing Company · 1988