Y10S 165/525
Helical
Y10S165/525 (Helical) appears on 11 US grants and 0 published applications in this corpus.
Search patents in Y10S- Granted patents
- 11
- Published applications
- 0
- Assignees
- 8
- Inventors
- 22
- Latest grant
- 8 Sep 1998
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 6 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Multiple finned tube and a method for its manufacture8 Sep 1998US 5,803,164 AWieland-Werke AG
- Heat exchanger8 Sep 1998US 5,803,165 AHitachi, Ltd.
- Evaporator of refrigerator28 Jul 1998US 5,784,897 ADaewoo Electronics Co., Ltd.
- Heat-exchanger tube for condensing of vapor7 Jul 1998US 5,775,411 AWieland-Werke AG
- Method of manufacture of a multiple finned tube9 Jun 1998US 5,761,807 AWieland-Werke AG
No published applications in this class yet.
Most cited
By later US patents
- Inner finned heat exchanger tube38US 4,154,296 AAmerican Standard Inc. · 1979
- Radiant tubes having internal fins38US 5,655,599 AGas Research Institute · 1997
- Heat exchanger37US 5,803,165 AHitachi, Ltd. · 1998
- Heat-exchanger tube for condensing of vapor28US 5,775,411 AWieland-Werke AG · 1998
- Heat transfer tube having grooved inner surface and production method therefor25US 5,704,424 AMitsubishi Shindowh Co., Ltd. · 1998