| # | Country | Total Patents | |
|---|---|---|---|
| #1 | South Africa | 7 | |
| #2 | Germany | 1 | |
| #3 | United Kingdom | 1 | |
| #4 | Netherlands | 1 | |
| #5 | Norway | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Dredging |
| # | Name | Total Patents |
|---|---|---|
| #1 | Lichtenberg Karl Adolf Walter | 3 |
| #2 | Brooks D | 2 |
| #3 | Angelos K | 1 |
| #4 | Piccolo M | 1 |
| #5 | Fink Joachim Hermann Wilhelm | 1 |
| #6 | Handt Friedbert Martin | 1 |
| #7 | Ansara Mitchell | 1 |
| #8 | Tonini R | 1 |
| #9 | Tonini Renoldo | 1 |
| #10 | Schilbach K | 1 |
| Publication | Filing date | Title |
|---|---|---|
| ZA8405461B | Shuttering | |
| ZA8108855B | Mine support sub-unit | |
| ZA8007094B | Dumper vehicles and bodies therefor | |
| GB2013823A | Apparatus for burying pipelines, cables etc. | |
| ZA7403626B | Structural element | |
| ZA7307135B | Flexible lining | |
| ZA7004129B | Improvements in or relating to paving blocks | |
| ZA7004128B | Improvements in paving blocks |