| # | Country | Total Patents | |
|---|---|---|---|
| #1 | EPO (European Patent Office) | 6 | |
| #2 | Canada | 5 | |
| #3 | United States | 3 | |
| #4 | Republic of Korea | 1 | |
| #5 | Taiwan | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Fire-fighting | |
| #2 | Pipes |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hattori Takamasa | 15 |
| Publication | Filing date | Title |
|---|---|---|
| EP0676575A2 | Fitting for connecting a two-layer tube to a sprinkler head | |
| CA2102838A1 | Sprinkler head having a checking means for checking that fluid has been filled inside of a sprinkler head body and method for checking that the fluid has been filled using such sprinkler head | |
| US5351999A | Pipe coupling arrangement | |
| CA2045390A1 | Sprinkler head | |
| US5159984A | Sprinkler head | |
| KR940009689B1 | Method of installing pipes for sprinkler head mounting and sprinkler head mounting piping arrangement |