B65D 2581/3489
Microwave reflector, i.e. microwave shield
Official title: Microwave reflector, i.e. microwave shield (B65D2581/3487 takes precedence)
B65D2581/3489 (Microwave reflector, i.e. microwave shield) appears on 202 US grants and 125 published applications in this corpus.
Search patents in B65D- Granted patents
- 202
- Published applications
- 125
- Assignees
- 70
- Inventors
- 268
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 5 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 4 | 0 |
| 1987 | 5 | 0 |
| 1988 | 5 | 0 |
| 1989 | 7 | 0 |
| 1990 | 11 | 0 |
| 1991 | 6 | 0 |
| 1992 | 5 | 0 |
| 1993 | 11 | 0 |
| 1994 | 7 | 0 |
| 1995 | 4 | 0 |
| 1996 | 3 | 0 |
| 1997 | 3 | 0 |
| 1998 | 4 | 0 |
| 1999 | 9 | 0 |
| 2000 | 5 | 0 |
| 2001 | 4 | 3 |
| 2002 | 5 | 1 |
| 2003 | 1 | 8 |
| 2004 | 8 | 2 |
| 2005 | 3 | 3 |
| 2006 | 1 | 7 |
| 2007 | 2 | 14 |
| 2008 | 3 | 6 |
| 2009 | 3 | 14 |
| 2010 | 3 | 9 |
| 2011 | 7 | 7 |
| 2012 | 2 | 3 |
| 2013 | 4 | 5 |
| 2014 | 7 | 8 |
| 2015 | 6 | 4 |
| 2016 | 2 | 4 |
| 2017 | 6 | 6 |
| 2018 | 4 | 5 |
| 2019 | 4 | 0 |
| 2020 | 1 | 4 |
| 2021 | 4 | 3 |
| 2022 | 4 | 3 |
| 2023 | 1 | 2 |
| 2024 | 1 | 0 |
| 2025 | 4 | 3 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Container with liner8 Sep 2026US 12,729,035 B2Graphic Packaging International, Inc.
- Container with liner19 Aug 2025US 12,391,456 B2Graphic Packaging International, Inc.
- Container with liner8 Jul 2025US 12,351,370 B2Graphic Packaging International, Inc.
- Energy control elements for improved microwave heating of packaged articles20 May 2025US 12,309,905 B2915 Labs, LLC
- Container with liner7 Jan 2025US 12,187,503 B2Graphic Packaging International, Inc.
- Tray with compartments21 May 2026US 2026/0138807 A1Graphic Packaging International, Inc.
- Dimensionally stable flexible microwavable package15 May 2025US 2025/0153925 A1Amcor Flexibles North America, Inc.
- Container With Liner20 Mar 2025US 2025/0091757 A1Graphic Packaging International, Inc.
- Container With Liner6 Feb 2025US 2025/0042599 A1Graphic Packaging International, Inc.
- Container With Liner24 Aug 2023US 2023/0264849 A1Graphic Packaging International, Inc.
Most cited
By later US patents
- Microwave heating package and method297US 4,190,757 AThe Pillsbury Company · 1980
- Insulating microwave interactive packaging250US 7,019,271 B2Graphic Packaging International, Inc. · 2006
- Methods and devices used in the microwave heating of foods and other materials209US 5,519,195 ABeckett Technologies Corp. · 1996
- Abuse-tolerant metallic pattern arrays for microwave packaging materials204US 6,677,563 B2Graphic Packaging Corporation · 2004
- Controlled heating of foodstuffs by microwave energy202US 5,117,078 ABeckett Industries Inc. · 1992