How many patents does
Elkem have?
patents
403
families
54
granted
115
applications
288
EP
65
US
57
CN
34
WO
32
JP
7
KR
6
RoW
202
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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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Elkem
Top ten assignees appearing on patents
2009 - 2018
| elkem | 295 |
| alcoa (aluminum company of america) | 57 |
| elkem carbon | 12 |
| elkem solar | 9 |
| alcon | 1 |
| mondo minerals | 1 |
| mondo minerals oy, helsinki | 1 |
| elkem asa norweigan corporation | 1 |
| ehlkem | 1 |
| elken | 1 |
2018
| elkem | 31 |
Elkem
The top ten patent families are
|
Title of patent family (most common patent title) |
Family members |
Filing year |
|---|---|---|
| oil well drilling fluids, oil well cement composition, and slurry of weighting material … 🛈 | 23 | 2011 |
| method of cementing gas or oil pipeline and hydraulic cement slurry | 20 | 2006 |
| aqueous slurry of amorphous silica and method for its production | 18 | 2010 |
| apparatus and method of carbothermic aluminium production | 16 | 2007 |
| process for the production of aluminium oxide particles | 16 | 2014 |
| method for production of trichlorosilane and silicon for use in the production of trichl… 🛈 | 16 | 2010 |
| induction furnace for melting of metals, lining for an induction furnace and method for … 🛈 | 16 | 2008 |
| process for the production of silicon dioxide particles | 15 | 2014 |
| viscosifier for oil well fluids | 14 | 2013 |
| cement composition based on calcium aluminate cement | 13 | 2011 |