B29L 2031/709
Articles shaped in a closed loop
Official title: {Articles shaped in a closed loop, e.g. conveyor belts}
B29L2031/709 (Articles shaped in a closed loop) appears on 560 US grants and 390 published applications in this corpus.
Search patents in B29L- Granted patents
- 560
- Published applications
- 390
- Assignees
- 297
- Inventors
- 1,012
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 10 | 0 |
| 1977 | 8 | 0 |
| 1978 | 8 | 0 |
| 1979 | 3 | 0 |
| 1980 | 8 | 0 |
| 1981 | 10 | 0 |
| 1982 | 10 | 0 |
| 1983 | 13 | 0 |
| 1984 | 7 | 0 |
| 1985 | 8 | 0 |
| 1986 | 11 | 0 |
| 1987 | 10 | 0 |
| 1988 | 10 | 0 |
| 1989 | 10 | 0 |
| 1990 | 12 | 0 |
| 1991 | 6 | 0 |
| 1992 | 9 | 0 |
| 1993 | 11 | 0 |
| 1994 | 15 | 0 |
| 1995 | 8 | 0 |
| 1996 | 14 | 0 |
| 1997 | 11 | 0 |
| 1998 | 7 | 0 |
| 1999 | 13 | 0 |
| 2000 | 11 | 0 |
| 2001 | 13 | 4 |
| 2002 | 25 | 18 |
| 2003 | 19 | 31 |
| 2004 | 21 | 31 |
| 2005 | 16 | 20 |
| 2006 | 13 | 12 |
| 2007 | 11 | 15 |
| 2008 | 4 | 18 |
| 2009 | 8 | 20 |
| 2010 | 15 | 21 |
| 2011 | 19 | 14 |
| 2012 | 10 | 18 |
| 2013 | 11 | 15 |
| 2014 | 10 | 8 |
| 2015 | 11 | 9 |
| 2016 | 9 | 12 |
| 2017 | 14 | 16 |
| 2018 | 10 | 18 |
| 2019 | 18 | 14 |
| 2020 | 9 | 25 |
| 2021 | 10 | 10 |
| 2022 | 16 | 7 |
| 2023 | 6 | 10 |
| 2024 | 5 | 5 |
| 2025 | 6 | 10 |
| 2026 | 8 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method of manufacturing smart ring, and smart ring manufactured through the method29 Sep 2026US 12,745,919 B2ZTACOM Co., Ltd.
- Low cost ring device structures11 Aug 2026US 12,702,356 B2Oura Health Oy
- Seam for an industrial textile with energy absorbent yarns9 Jun 2026US 12,649,297 B2AstenJohnson International, Inc.
- Methods, systems, and apparatuses for manufacturing wearable ring devices2 Jun 2026US 12,643,283 B1NaturalCycles Nordic AB
- Flex wrap circuit assembly techniques12 May 2026US 12,623,411 B2Oura Health Oy
- Techniques for manufacturing a wearable ring device8 Oct 2026US 2026/0307308 A1Oura Health Oy
- Reinforced belt joint8 Oct 2026US 2026/0309208 A1Ecobelt Ltd
- Methods, systems, and apparatuses for manufacturing wearable ring devices1 Oct 2026US 2026/0295929 A1
- Coextruded conveyor guide and application method17 Sep 2026US 2026/0273880 A1Lion Extrusion, LLC
- Flex wrap circuit assembly techniques30 Jul 2026US 2026/0216961 A1Oura Health Oy
Most cited
By later US patents
- Method of making an artificial airway device214US 5,391,248 A1995
- Fused loop filamentous material214US 5,893,880 AAxya Medical, Inc. · 1999
- Fused loop of filamentous material and apparatus for making same148US 6,286,746 B1Axya Medical, Inc. · 2001
- Artificial airway device143US 5,305,743 A1994
- Fused loop of filamentous material and apparatus for making same140US 6,358,271 B1Axya Medical, Inc. · 2002