E01B 27/027
Loosening ballasting material
Official title: {Loosening ballasting material}
E01B27/027 (Loosening ballasting material) appears on 2 US grants and 0 published applications in this corpus.
Search patents in E01B- Granted patents
- 2
- Published applications
- 0
- Assignees
- 2
- Inventors
- 3
- Latest grant
- 8 May 1979
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
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Most cited
By later US patents