| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 9 | |
| #2 | United Kingdom | 4 | |
| #3 | United States | 3 |
| # | Industry | |
|---|---|---|
| #1 | Materials and metallurgy | |
| #2 | Transport | |
| #3 | Surface technology and coating | |
| #4 | Engines, pumps and turbines | |
| #5 | Consumer goods | |
| #6 | Telecommunications | |
| #7 | Basic communication technologies | |
| #8 | Machines | |
| #9 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Wheelchairs and sledges | |
| #2 | Building materials | |
| #3 | Writing or drawing tools | |
| #4 | Supplying combustion engines | |
| #5 | Transmission | |
| #6 | Electrolytic coating production | |
| #7 | Lubricating | |
| #8 | Metallic material removal | |
| #9 | Spraying devices | |
| #10 | Resonators |
| # | Name | Total Patents |
|---|---|---|
| #1 | Mayr Hermann | 3 |
| #2 | Hermann Mayr | 3 |
| Publication | Filing date | Title |
|---|---|---|
| US2289444A | System of transmission and reception | |
| GB503698A | Improvements in coupling systems for wireless aerials | |
| US2214106A | Motor drive for cycles | |
| GB511544A | Motor drive for cycles | |
| US1985737A | Process of manufacturing of light nailable bricks | |
| GB377561A | Process for producing nailable light-bricks | |
| DE507466C | Floatless carburetor | |
| GB182354A | Pen for copy-writing | |
| DE562872C | Spray gun with two or more spray gun barrels attached to one handle |