F28F 19/04
Of rubber
Official title: of rubber; of plastics material; of varnish
F28F19/04 (Of rubber) appears on 142 US grants and 161 published applications in this corpus.
Search patents in F28F- Granted patents
- 142
- Published applications
- 161
- Assignees
- 121
- Inventors
- 463
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 5 | 0 |
| 1985 | 3 | 0 |
| 1986 | 3 | 0 |
| 1987 | 3 | 0 |
| 1988 | 3 | 0 |
| 1989 | 4 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 2 | 0 |
| 2001 | 3 | 0 |
| 2002 | 2 | 7 |
| 2003 | 2 | 5 |
| 2004 | 1 | 4 |
| 2005 | 1 | 3 |
| 2006 | 1 | 6 |
| 2007 | 2 | 6 |
| 2008 | 1 | 7 |
| 2009 | 4 | 3 |
| 2010 | 3 | 4 |
| 2011 | 2 | 6 |
| 2012 | 5 | 4 |
| 2013 | 2 | 2 |
| 2014 | 3 | 7 |
| 2015 | 5 | 9 |
| 2016 | 2 | 5 |
| 2017 | 5 | 13 |
| 2018 | 7 | 6 |
| 2019 | 6 | 10 |
| 2020 | 5 | 9 |
| 2021 | 7 | 7 |
| 2022 | 7 | 8 |
| 2023 | 5 | 11 |
| 2024 | 10 | 6 |
| 2025 | 3 | 7 |
| 2026 | 5 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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Most cited
By later US patents
- Fuel cell cooling system82US 3,964,930 AUnited Technologies Corporation · 1976
- Antifouling member and antifouling coating composition69US 6,337,129 B12002
- Exhaust gas treatment method and apparatus47US 4,487,139 AHeat Exchanger Industries, Inc. · 1984
- Exhaust gas treatment method and apparatus44US 4,557,202 AHeat Exchanger Industries, Inc. · 1985
- Heat exchanger41US 8,550,151 B2Panasonic Corporation · 2013