How many patents does
Cdgm Optical Glass Company have?
patents
535
families
294
granted
133
applications
402
CN
382
JP
36
US
34
KR
25
WO
23
EP
14
RoW
21
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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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Cdgm Optical Glass Company
Top ten assignees appearing on patents
2009 - 2018
2009
| cdgm optical glass company | 18 |
2018
| cdgm glass company | 10 |
Cdgm Optical Glass Company
The top ten patent families are
|
Title of patent family (most common patent title) |
Family members |
Filing year |
|---|---|---|
| near infrared light absorbing glass, element and filter | 15 | 2012 |
| optical glass and optical element | 12 | 2014 |
| fluorophosphate optical glass | 10 | 2014 |
| optical glass and optical element | 9 | 2010 |
| glass suitable for chemically toughening and chemically toughened glass | 9 | 2009 |
| optical glass and optical element having negative anomalous dispersion | 8 | 2014 |
| fluorophosphate optical glass | 8 | 2009 |
| optical glass used for precision mould pressing, glass prefab, optical element and optic… 🛈 | 8 | 2012 |
| environmentally-friendly heavy lanthanum flint optical glass | 7 | 2012 |
| optical glass and optical element | 7 | 2011 |