| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 5 | |
| #2 | Australia | 2 | |
| #3 | Brazil | 2 | |
| #4 | Canada | 2 | |
| #5 | Germany | 2 | |
| #6 | France | 2 | |
| #7 | United Kingdom | 2 | |
| #8 | Japan | 2 | |
| #9 | Argentina | 1 | |
| #10 | Spain | 1 | |
| #11 | Italy | 1 | |
| #12 | Mexico | 1 | |
| #13 | South Africa | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Electrical machinery and energy |
| # | Technology | |
|---|---|---|
| #1 | Fire-fighting | |
| #2 | Electric switches |
| # | Name | Total Patents |
|---|---|---|
| #1 | Simons John R | 7 |
| #2 | Fenske John W | 6 |
| #3 | Simons J | 3 |
| #4 | Fenske J | 3 |
| #5 | Fenske John Walter | 2 |
| #6 | Simons John Roger | 2 |
| #7 | Simons J R | 2 |
| #8 | Fenske J W | 2 |
| #9 | Lowry James E | 1 |
| #10 | Jiyon Rojiyaa Saimonzu | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US6059046A | Low pressure carbon dioxide fire protection system for semiconductor fabrication facility | |
| US4662455A | Sprinkler head | |
| US4282413A | Liquid flow indicator | |
| US4105076A | Concealed sprinkler head | |
| IT1057411B | Fire extinguisher installation sprinkler head - has safety device of melting type with interconnecting lever system | |
| CA1048084A | Sprinkler head | |
| ZA7601542B | Sprinkler head | |
| US4015665A | Concealed sprinkler head |