B29D 99/0082
Producing articles in the form of closed loops
Official title: {Producing articles in the form of closed loops, e.g. rings (B29D29/00 takes precedence)}
B29D99/0082 (Producing articles in the form of closed loops) appears on 57 US grants and 63 published applications in this corpus.
Search patents in B29D- Granted patents
- 57
- Published applications
- 63
- Assignees
- 45
- Inventors
- 149
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 1 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 2 |
| 2011 | 2 | 0 |
| 2012 | 1 | 4 |
| 2013 | 3 | 4 |
| 2014 | 1 | 7 |
| 2015 | 6 | 4 |
| 2016 | 1 | 4 |
| 2017 | 3 | 5 |
| 2018 | 6 | 5 |
| 2019 | 5 | 1 |
| 2020 | 1 | 3 |
| 2021 | 2 | 5 |
| 2022 | 3 | 2 |
| 2023 | 2 | 4 |
| 2024 | 5 | 3 |
| 2025 | 1 | 5 |
| 2026 | 4 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Annular seal material and manufacturing method25 Aug 2026US 12,716,500 B2Valqua, Ltd.
- Sealing element and manufacturing process2 Jun 2026US 12,644,521 B2ElringKlinger AG
- Techniques for manufacturing a wearable ring device28 Apr 2026US 12,611,806 B2Oura Health Oy
- Device and method for automatically removing margins of rubber sealing rings in high-accuracy24 Feb 2026US 12,558,856 B2Chengdu Holy Aviation Science Technology Co., Ltd.
- Automatic forming method and device for a rubber sealing ring blank9 Sep 2025US 12,409,594 B2Chengdu Holy Aviation Science Technology Co., Ltd.
- Techniques for manufacturing a wearable ring device8 Oct 2026US 2026/0307308 A1Oura Health Oy
- Techniques for manufacturing a wearable ring device23 Jul 2026US 2026/0208411 A1Oura Health Oy
- Techniques for manufacturing a wearable device using vacuum or pressure-formed domes16 Oct 2025US 2025/0318611 A1Oura Health Oy
- Annular seal material and manufacturing method26 Jun 2025US 2025/0205939 A1Valqua, Ltd.
- Annular seal material and manufacturing method19 Jun 2025US 2025/0198518 A1Valqua, Ltd.
Most cited
By later US patents
- Annular filamentary structures and methods of making69US 5,546,880 AThe B. F. Goodrich Company · 1996
- Method of forming large diameter thermoplastic seal23US 8,721,823 B2Saint-Gobain Performance Plastics Corporation · 2014
- Injection molded seals for compressors16US 9,121,276 B2Emerson Climate Technologies, Inc. · 2015
- Ring forming machine15US 3,994,767 ASpherex, Inc. · 1976
- Seal and procedure for its production12US 9,067,346 B2Carl Freudenberg KG · 2015