B21D 39/066
Using explosives
Official title: {using explosives}
B21D39/066 (Using explosives) appears on 16 US grants and 0 published applications in this corpus.
Search patents in B21D- Granted patents
- 16
- Published applications
- 0
- Assignees
- 11
- Inventors
- 29
- Latest grant
- 6 Jul 1993
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Method of assembly of tubular metallic fences6 Jul 1993US 5,224,256 A
- Plug for kinetic bonding procedure9 Aug 1988US 4,762,265 AElectric Power Research Institute, Inc.
- Tube sheet welding7 Jun 1988US 4,749,117 AICI Americas Inc.
- Debris free plug assembly for heat exchange tubes13 May 1986US 4,587,904 AFoster Wheeler Energy Corporation
- Tube-in-shell heat exchangers22 Oct 1985US 4,547,944 ANational Nuclear Corporation Limited
No published applications in this class yet.
Most cited
By later US patents
- Tube repairs113US 4,205,422 AYorkshire Imperial Metals Limited · 1980
- Explosive tube expansion19US 4,449,280 AFoster Wheeler Energy Corporation · 1984
- Apparatus for forming an explosively expanded tube-tube sheet joint including a low energy transfer cord and booster17US 4,494,392 AFoster Wheeler Energy Corporation · 1985
- Explosive expansion means for attaching tubes to tube sheets12US 3,993,001 ATetra Plastics, Inc. · 1976
- Process for the preparation of antacid aluminum hydroxycarbonate hydrate9US 4,053,568 ADr. Madaus & Co. · 1977