B29C 49/16
Using pressure difference for pre-stretching
Official title: using pressure difference {for pre-stretching}, e.g. pre-blowing
B29C49/16 (Using pressure difference for pre-stretching) appears on 140 US grants and 79 published applications in this corpus.
Search patents in B29C- Granted patents
- 140
- Published applications
- 79
- Assignees
- 78
- Inventors
- 255
- Latest grant
- 17 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 10 | 0 |
| 1978 | 7 | 0 |
| 1979 | 1 | 0 |
| 1980 | 4 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 3 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 5 | 0 |
| 1995 | 3 | 0 |
| 1996 | 5 | 0 |
| 1997 | 3 | 0 |
| 1998 | 4 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 1 |
| 2003 | 2 | 1 |
| 2004 | 1 | 3 |
| 2005 | 0 | 1 |
| 2006 | 0 | 5 |
| 2007 | 3 | 2 |
| 2008 | 0 | 3 |
| 2009 | 0 | 4 |
| 2010 | 1 | 13 |
| 2011 | 1 | 6 |
| 2012 | 2 | 5 |
| 2013 | 5 | 5 |
| 2014 | 10 | 5 |
| 2015 | 6 | 6 |
| 2016 | 6 | 5 |
| 2017 | 4 | 2 |
| 2018 | 3 | 1 |
| 2019 | 6 | 1 |
| 2020 | 0 | 3 |
| 2021 | 2 | 0 |
| 2022 | 2 | 4 |
| 2023 | 2 | 1 |
| 2024 | 3 | 1 |
| 2025 | 1 | 0 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Resin container manufacturing method17 Mar 2026US 12,576,574 B2Nissei Asb Machine Co., Ltd.
- Device and method for treating hollow bodies18 Feb 2025US 12,226,946 B2Sidel Participations
- Hollow body molding aid and molding method26 Nov 2024US 12,151,419 B2Yapp Automotive Systems Co., Ltd.
- Hollow body forming mold and hollow body forming method8 Oct 2024US 12,109,751 B2Yapp Automotive Systems Co., Ltd.
- Resin container manufacturing method16 Apr 2024US 11,958,229 B2Nissei Asb Machine Co., Ltd.
- Methods and apparatuses for forming plastics material preforms into plastics material containers with determination of a switching time delay of valves26 Feb 2026US 2026/0054445 A1Krones AG
- Resin container manufacturing method4 Jul 2024US 2024/0217158 A1Nissei Asb Machine Co., Ltd.
- Device and method for treating hollow bodies26 Jan 2023US 2023/0024197 A1Sidel Participations
- Production device for fuel tank15 Sep 2022US 2022/0288837 A1Yachiyo Industry Co., Ltd.
- Resin container manufacturing method12 May 2022US 2022/0143895 A1Nissei Asb Machine Co., Ltd.
Most cited
By later US patents
- Biaxially-stretch-blow-molded container having excellent heat resistance and method of producing the same122US 5,735,420 AToyo Seikan Kaisha, Ltd. · 1998
- Method of making a blown bottle having a ribbed interior surface86US 3,956,441 AOwens-Illinois, Inc. · 1976
- Double-blown PET bottle shaped container having essentially no residual stress and superior heat resistance66US 5,562,960 AYoshino Kogyosho Co., Ltd. · 1996
- Method and apparatus for making an object of a plastic material50US 6,074,596 AGrosfillex Sarl · 2000
- Poly(ethylene terephthalate) articles49US 4,603,066 AOwens-Illinois, Inc. · 1986