How many patents does
Anhui Huaihua Chemical Group Company have?
patents
456
families
375
granted
79
applications
377
CN
453
US
2
WO
1
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The report contains ten-year analysis with the following sections
- patent filing analysis
- worldwide filing analysis
- patent family analysis
- application analysis
- granted analysis
- classification analysis
- citation analysis
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Anhui Huaihua Chemical Group Company
Top ten assignees appearing on patents
2009
2018
Anhui Huaihua Chemical Group Company
The top ten patent families are
|
Title of patent family (most common patent title) |
Family members |
Filing year |
|---|---|---|
| system and process for trapping sulfur dioxide and carbon dioxide by ammonia absorption … 🛈 | 5 | 2011 |
| carbonylation reactor suitable for industrial production of ethylene glycol | 2 | 2010 |
| process device for preparing nitric acid aqueous solution | 2 | 2012 |
| method for recovering dimethyl oxalate in preparation process of ethylene glycol from sy… 🛈 | 2 | 2012 |
| on-line detection system for preparing ethylene glycol with synthetic gas in industrial … 🛈 | 2 | 2014 |
| method and device for regenerating molecular sieve by using waste heat of synthesis ammo… 🛈 | 2 | 2012 |
| ethylene glycol production device | 2 | 2012 |
| recycling device for caking ammonium nitrate during production of porous ammonium nitrat… 🛈 | 2 | 2014 |
| valve packing gland pressing plate and replacing method thereof | 2 | 2014 |
| seal oil circulation method and seal oil circulation system | 2 | 2014 |