| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 11 |
| # | Industry | |
|---|---|---|
| #1 | Basic materials chemistry | |
| #2 | Thermal processes |
| # | Technology | |
|---|---|---|
| #1 | Acetylene production | |
| #2 | Domestic stoves | |
| #3 | Burners |
BERNHARD GREIFZU has a total of 11 patent applications. Its first patent ever was published in 1917. It filed its patents most often in Germany. Its main competitors in its focus markets basic materials chemistry and thermal processes are BERNHARD MARGRETH, BECK CHARLES WILLIAM and DUCELLIER GABRIEL.
| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 11 |
| # | Industry | |
|---|---|---|
| #1 | Basic materials chemistry | |
| #2 | Thermal processes |
| # | Technology | |
|---|---|---|
| #1 | Acetylene production | |
| #2 | Domestic stoves | |
| #3 | Burners |