C04B 35/4517
Also containing lead oxide
Official title: {also containing lead oxide}
C04B35/4517 (Also containing lead oxide) appears on 17 US grants and 0 published applications in this corpus.
Search patents in C04B- Granted patents
- 17
- Published applications
- 0
- Assignees
- 13
- Inventors
- 38
- Latest grant
- 15 Dec 1998
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 3 | 0 |
| 1996 | 4 | 0 |
| 1997 | 2 | 0 |
| 1998 | 3 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Oxide superconducting material, process for preparing the same and applications thereof15 Dec 1998US 5,849,672 ASumitomo Electric Industries, Ltd.
- Process for prorducing thallium-containing high-T.sub.c superconductors in flowing gas atmospheres1 Sep 1998US 5,801,126 AHoechst Aktiengesellschaft
- Thallium oxide superconductor and method of preparing the same28 Apr 1998US 5,744,427 ASumitomo Electric Industries, Ltd.
- Tl-based superconductive material, a superconductive body, and a method of forming such a superconductive material or body15 Jul 1997US 5,648,322 AHitachi, Ltd.
- Rare earth substituted thallium-based superconductors8 Jul 1997US 5,646,094 A
No published applications in this class yet.
Most cited
By later US patents
- Method for making oriented bismuth and thallium superconductors comprising cold pressing at 700 MPa9US 5,149,687 AUnited Technologies Corporation · 1992
- Sr.sub.2 (Bi.sub.1-a Pba).sub.x Cu.sub.y O.sub.z metal oxide material7US 5,019,553 ACanon Kabushiki Kaisha · 1991
- Superconductive material, a superconductive body, and a method of forming such a superconductive material or body7US 5,462,922 AHitachi, Ltd. · 1995
- Preparation method of high purity 115 K Tl-based superconductor6US 5,210,069 AIndustrial Technology Research Institute · 1993
- Process for preparing superconductor5US 5,049,541 AFujitsu Limited · 1991