B29C 51/422
To produce a temperature differential
Official title: {to produce a temperature differential (B29C51/426 takes precedence)}
B29C51/422 (To produce a temperature differential) appears on 95 US grants and 96 published applications in this corpus.
Search patents in B29C- Granted patents
- 95
- Published applications
- 96
- Assignees
- 83
- Inventors
- 204
- Latest grant
- 21 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 4 | 0 |
| 1978 | 4 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 4 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 4 |
| 2003 | 0 | 2 |
| 2004 | 2 | 4 |
| 2005 | 0 | 3 |
| 2006 | 0 | 1 |
| 2007 | 2 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 4 |
| 2010 | 1 | 1 |
| 2011 | 1 | 5 |
| 2012 | 1 | 5 |
| 2013 | 1 | 10 |
| 2014 | 1 | 4 |
| 2015 | 3 | 3 |
| 2016 | 1 | 1 |
| 2017 | 3 | 3 |
| 2018 | 1 | 4 |
| 2019 | 5 | 3 |
| 2020 | 2 | 12 |
| 2021 | 4 | 4 |
| 2022 | 6 | 4 |
| 2023 | 8 | 4 |
| 2024 | 5 | 5 |
| 2025 | 5 | 7 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Container with product visualization aperture21 Apr 2026US 12,605,901 B2Sonoco Development, Inc.
- Aligner manufacturing methods24 Mar 2026US 12,583,170 B1Align Technology, Inc.
- Method for blow molding containers20 May 2025US 12,304,130 B2PepsiCo, Inc.
- Thermoforming machine and method15 Apr 2025US 12,275,183 B2Essilor International
- Dynamic thermoforming of dental appliances1 Apr 2025US 12,263,632 B2Align Technology, Inc.
- Aligner manufacturing systems9 Jul 2026US 2026/0192507 A1Align Technology, Inc.
- Apparatus and process for making a water soluble pouch2 Jul 2026US 2026/0185022 A1The Procter & Gamble Company
- Method for producing a detergent-portion unit24 Jul 2025US 2025/0236062 A1Henkel AG & Co. KGaA
- Heating device for producing detergent metering units with improved properties24 Jul 2025US 2025/0236063 A1Henkel AG & Co. KGaA
- Dental appliance dynamic thermoforming systems17 Jul 2025US 2025/0229479 A1Align Technology, Inc.
Most cited
By later US patents
- Methods and systems for thermal forming an object150US 9,108,338 B2Align Technology, Inc. · 2015
- Apparatus for accurately forming plastic sheet78US 6,257,866 B1Hy-Tech Forming Systems, Inc. · 2001
- Melt-phase thermal pressure apparatus for forming of plastic blanks into retortable containers50US 4,836,764 AQuesTech Ventures, Inc. · 1989
- Forming thermoplastic web materials44US 4,994,229 AHitek Limited · 1991
- Retortable container39US 4,997,691 AQuesTech Ventures, Inc. · 1991