B28B 7/168
For holders or similar hollow articles
Official title: {for holders or similar hollow articles, e.g. vaults, sewer pits}
B28B7/168 (For holders or similar hollow articles) appears on 52 US grants and 31 published applications in this corpus.
Search patents in B28B- Granted patents
- 52
- Published applications
- 31
- Assignees
- 27
- Inventors
- 83
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 3 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 0 |
| 2005 | 0 | 1 |
| 2006 | 1 | 3 |
| 2007 | 0 | 2 |
| 2008 | 1 | 1 |
| 2009 | 0 | 0 |
| 2010 | 1 | 1 |
| 2011 | 2 | 0 |
| 2012 | 1 | 1 |
| 2013 | 1 | 1 |
| 2014 | 0 | 3 |
| 2015 | 0 | 1 |
| 2016 | 0 | 0 |
| 2017 | 1 | 1 |
| 2018 | 0 | 2 |
| 2019 | 4 | 2 |
| 2020 | 1 | 2 |
| 2021 | 3 | 0 |
| 2022 | 0 | 5 |
| 2023 | 2 | 1 |
| 2024 | 0 | 1 |
| 2025 | 2 | 2 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Catch basin trap with collapsible outlet pipe connector and method of making a catch basin11 Aug 2026US 12,704,211 B2Decast Ltd.
- Targeted ceramic casting core inhomogeneity12 May 2026US 12,623,373 B2Rtx Corporation
- Compact combustion chamber mold for a circulating fluidized bed boiler and a method of obtaining a combustion chamber with this mold26 Aug 2025US 12,397,470 B2SüLeyman Demirel üNiversitesi Idari Ve Mali Isler Daire Baskanligi Genelsekreterlik
- Manhole urethane mold and method of producing the same28 Jan 2025US 12,208,546 B2Oldcastle Infrastructure, Inc.
- Tie-dye poppers and method for creating same14 Nov 2023US 11,814,786 B2Paisley Crafts, LLC
- Targeted Ceramic Casting Core Inhomogeneity6 Aug 2026US 2026/0225282 A1Rtx Corporation
- Compact combustion chamber mold for a circulating fluidized bed boiler and a method of obtaining a combustion chamber with this mold1 May 2025US 2025/0135681 A1SüLeyman Demirel üNiversitesi Idari Ve Mali Isler Daire Baskanligi Genelsekreterlik
- Precast concrete pipe coupling and system and method for manufacturing the same13 Feb 2025US 2025/0050537 A1
- Targeted Ceramic Casting Core Inhomogeneity10 Oct 2024US 2024/0335977 A1Raytheon Technologies Corporation
- Automated system for producing manhole products and associated method30 Nov 2023US 2023/0382010 A1
Most cited
By later US patents
- Method and apparatus for lining manhole assemblies and the like35US 5,081,802 APoly-Tec Products, Inc. · 1992
- Lined manhole assembly and liner32US 5,303,518 AStrickland Industries, Inc. · 1994
- Lined structure and liner30US 5,383,311 AStrickland Industries, Inc. · 1995
- Method and apparatus for forming manhole bases27US 4,318,880 A1982
- Method and apparatus for forming inverts in manhole assemblies, and the like27US 4,422,994 AA-Lok Products, Inc. · 1983