| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Brazil | 2 | |
| #2 | Germany | 2 | |
| #3 | Spain | 2 | |
| #4 | France | 2 | |
| #5 | Israel | 2 | |
| #6 | Italy | 2 | |
| #7 | Netherlands | 2 | |
| #8 | Sweden | 2 | |
| #9 | South Africa | 2 | |
| #10 | Australia | 1 | |
| #11 | Canada | 1 | |
| #12 | United Kingdom | 1 | |
| #13 | India | 1 | |
| #14 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Materials and metallurgy |
| # | Technology | |
|---|---|---|
| #1 | Non-metallic elements |
| # | Name | Total Patents |
|---|---|---|
| #1 | Pierres S | 3 |
| #2 | Pierres S O | 3 |
| #3 | Pierres Sergio Ortega | 2 |
| #4 | Ortega Pierres Sergio | 1 |
| #5 | Pierres Sergio O | 1 |
| #6 | Ortega Pierres | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US4048289A | Stabilization of wet-process phosphoric acid | |
| ZA7405176B | Production of detergent grade phosphoric acid | |
| CA1042180A | Stabilization of wet process phosphoric acid |