F16L 13/113
For concrete pipes
Official title: {for concrete pipes}
F16L13/113 (For concrete pipes) appears on 9 US grants and 7 published applications in this corpus.
Search patents in F16L- Granted patents
- 9
- Published applications
- 7
- Assignees
- 6
- Inventors
- 13
- Latest grant
- 6 May 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 1 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 2 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 1 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 1 | 0 |
| 2019 | 0 | 1 |
| 2020 | 1 | 0 |
| 2021 | 0 | 1 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 1 | 0 |
| 2025 | 1 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for refurbishing pre-stressed concrete cylinder pipe and refurbished pre-stressed concrete cylinder pipe6 May 2025US 12,292,157 B1Technical Construction Infrastructure Inc.
- Duct coupler for use with ducts in a wet joint of segmental concrete construction2 Jan 2024US 11,859,351 B2
- Device for guiding liquid and production method13 Oct 2020US 10,801,648 B2Aco Severin Ahlmann GmbH & Co. Kommanditgesellschaft
- Duct coupler devices, systems, and related methods30 Jan 2018US 9,879,804 B2Structural Technologies, LLC
- Watertight joint seal for concrete structures9 Nov 2010US 7,828,496 B1Terre Hill Silo Company
- Method for Refurbishing Pre-Stressed Concrete Cylinder Pipe and Refurbished Pre-Stressed Concrete Cylinder Pipe1 Jan 2026US 2026/0002612 A1
- Duct Coupler for Use with Ducts in a Wet Joint of Segmental Concrete Construction4 Mar 2021US 2021/0062941 A1
- Device for guiding liquid and production method14 Mar 2019US 2019/0078706 A1Aco Severin Ahlmann GmbH & Co. Kommanditgesellschaft
- Duct coupler for use with ducts in a wet joint of segmental concrete construction30 Jul 2015US 2015/0211665 A1
- Duct coupler devices, systems, and related methods18 Dec 2014US 2014/0367961 A1Structural Technologies, LLC
Most cited
By later US patents
- Precast concrete slab system and method therefor32US 7,134,805 B2Kwik Slab, LLC · 2006
- Precast concrete slab system and method therefor13US 7,677,832 B2Kwik Slab, LLC · 2010
- Pre-stressed concrete pipe8US 6,076,562 A2000
- Pipe joint for large diameter flexible pipes2US 4,035,003 AConcrete Pipe Consultants, Inc. · 1977
- Watertight joint seal for concrete structures1US 7,828,496 B1Terre Hill Silo Company · 2010