| # | Country | Total Patents | |
|---|---|---|---|
| #1 | South Africa | 2 | |
| #2 | Austria | 1 | |
| #3 | Australia | 1 | |
| #4 | Belgium | 1 | |
| #5 | Canada | 1 | |
| #6 | Switzerland | 1 | |
| #7 | Germany | 1 | |
| #8 | Denmark | 1 | |
| #9 | Spain | 1 | |
| #10 | Finland | 1 | |
| #11 | United Kingdom | 1 | |
| #12 | Ireland | 1 | |
| #13 | Israel | 1 | |
| #14 | Italy | 1 | |
| #15 | Japan | 1 | |
| #16 | Mexico | 1 | |
| #17 | Netherlands | 1 | |
| #18 | New Zealand | 1 | |
| #19 | Sweden | 1 | |
| #20 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Textiles and paper |
| # | Technology | |
|---|---|---|
| #1 | Printing machines | |
| #2 | Making paper containers | |
| #3 | Mechanical paper working |
| # | Name | Total Patents |
|---|---|---|
| #1 | Welschlau Udo | 10 |
| #2 | Welschlau U | 4 |
| #3 | Aaron C | 1 |
| #4 | Welschlau Udo Ing Grad | 1 |
| #5 | Udo Uerushiyurau | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE2745854A1 | SYSTEM FOR THE PRODUCTION OF A REFINED RAILWAY, IN PARTICULAR CORRUGATED PAPER RAILWAY |