| # | Country | Total Patents | |
|---|---|---|---|
| #1 | South Africa | 7 | |
| #2 | EPO (European Patent Office) | 2 | |
| #3 | Israel | 2 | |
| #4 | United States | 2 | |
| #5 | African Regional Industrial Property Organization | 1 | |
| #6 | Australia | 1 | |
| #7 | New Zealand | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Earth drilling | |
| #2 | Installations for obtaining water | |
| #3 | Hydraulic engineering |
| # | Name | Total Patents |
|---|---|---|
| #1 | Kothmann Antonius Bernhard | 11 |
| #2 | Antonius Bernhard Kothmann | 3 |
| #3 | Brinch Keith | 3 |
| #4 | Kothmann Antonius B | 2 |
| #5 | Kothmann Anthonius Bernhard | 1 |
| Publication | Filing date | Title |
|---|---|---|
| ZA8903992B | Apertured pipe segment | |
| AU2951189A | Apertured pipe segment | |
| ZA8701944B | Foldable chair | |
| ZA8701945B | Trench forming and re-closing apparatus and method | |
| ZA8502050B | Shutter arrangement and method | |
| ZA8408889B | Double hung window | |
| US4626129A | Sub-soil drainage piping | |
| ZA8405761B | Sub-soil drainage piping | |
| ZA8304538B | Method of making a building panel,and building panel itself |