B29C 66/52231
With a right angle
Official title: {with a right angle, e.g. for making L-shaped pieces}
B29C66/52231 (With a right angle) appears on 87 US grants and 70 published applications in this corpus.
Search patents in B29C- Granted patents
- 87
- Published applications
- 70
- Assignees
- 79
- Inventors
- 213
- Latest grant
- 10 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 4 | 0 |
| 1992 | 5 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 4 | 0 |
| 1996 | 4 | 0 |
| 1997 | 0 | 0 |
| 1998 | 4 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 3 | 2 |
| 2003 | 0 | 2 |
| 2004 | 4 | 0 |
| 2005 | 1 | 2 |
| 2006 | 0 | 2 |
| 2007 | 0 | 2 |
| 2008 | 0 | 1 |
| 2009 | 0 | 6 |
| 2010 | 0 | 4 |
| 2011 | 1 | 2 |
| 2012 | 1 | 3 |
| 2013 | 3 | 5 |
| 2014 | 1 | 3 |
| 2015 | 0 | 2 |
| 2016 | 1 | 4 |
| 2017 | 2 | 5 |
| 2018 | 4 | 3 |
| 2019 | 6 | 5 |
| 2020 | 2 | 3 |
| 2021 | 4 | 4 |
| 2022 | 5 | 0 |
| 2023 | 2 | 2 |
| 2024 | 2 | 4 |
| 2025 | 1 | 2 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Aluminum profile injection bonding method10 Feb 2026US 12,544,962 B2
- Corrosion-free welded connection for reinforced thermoplastic pipes (RTP)15 Apr 2025US 12,276,358 B2Saudi Arabian Oil Company
- Weldable half-shell31 Dec 2024US 12,181,093 B2Georg Fischer Rohrleitungssysteme AG
- Assembly and method of coupling pipes1 Oct 2024US 12,103,247 B2ISCO Industries, Inc.
- Couplings4 Jul 2023US 11,692,658 B2Franklin Fueling Systems, Inc.
- Double pipe fitting23 Jul 2026US 2026/0210469 A1Georg Ficher Rohrleitungssysteme AG
- Method for connecting two plastic pipes together, as well as an induction connecting sleeve for use in the method5 Feb 2026US 2026/0036237 A1Merisa Investments BV
- Induction heated corner keys25 Dec 2025US 2025/0387980 A1
- Method and apparatus for bonding reinforced hdpe pipes6 Mar 2025US 2025/0074010 A1
- Welding machine26 Dec 2024US 2024/0424746 A1Ritmo S.P.A.
Most cited
By later US patents
- Double wall piping system99US 4,932,257 A1990
- Tongue and groove snap-fit pipe coupling70US 5,007,666 AC & L Development Inc. · 1991
- Secondary containment system68US 4,805,444 A1989
- Inductive welding of thermoplastic pipe54US 5,786,054 ANIBCO Inc. · 1998
- Electrofusion joint and hot water supply header using the same51US 5,150,922 AMitsui Petrochemical Ind., Ltd. · 1992