Process for cleaning harmful gas
US5597540A · kind A · utility
27Cited by
8References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 19, 1994 |
| Grant date | Jan 28, 1997 |
| Priority date | — |
| Expiry date | Sep 19, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D53/68
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
RACT). DATABASE WPIL Section Ch, Week 9114, Derwent Publications Ltd., London, GB; Class E36, AN 91-097640 of JP-A-3 040 901 (NIPPON PIONICS KK) 21, Feb. 1991, (
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.