How many patents does
Toa Corporation have?
patents
340
families
143
granted
90
applications
250
JP
145
EP
55
US
47
WO
42
CN
23
KR
5
RoW
23
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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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Toa Corporation
Top ten assignees appearing on patents
Toa Corporation
The top ten patent families are
|
Title of patent family (most common patent title) |
Family members |
Filing year |
|---|---|---|
| hydraulic cement composition for injection into soil, and method for improvement in soil… 🛈 | 10 | 2009 |
| hydraulic cement composition for injection into soil, and method for improvement in soil… 🛈 | 10 | 2009 |
| local broadcasting system | 9 | 2007 |
| soil-volume reduction method | 9 | 2013 |
| 音響調整方法 | 9 | 2007 |
| speaker system | 8 | 2006 |
| amplification system | 8 | 2013 |
| vibration plate and speaker | 8 | 2007 |
| speaker line inspection device | 8 | 2008 |
| audio power amplifier | 7 | 2007 |