| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 4 | |
| #2 | Germany | 3 | |
| #3 | Australia | 2 | |
| #4 | Switzerland | 2 | |
| #5 | Argentina | 1 | |
| #6 | Austria | 1 | |
| #7 | Brazil | 1 | |
| #8 | Canada | 1 | |
| #9 | Spain | 1 | |
| #10 | United Kingdom | 1 | |
| #11 | South Africa | 1 |
| # | Industry | |
|---|---|---|
| #1 | Chemical engineering | |
| #2 | Organic fine chemistry | |
| #3 | Mechanical elements | |
| #4 | Materials and metallurgy | |
| #5 | Environmental technology | |
| #6 | Thermal processes | |
| #7 | Transport |
| # | Technology | |
|---|---|---|
| #1 | Separation | |
| #2 | Acyclic or carbocyclic compounds | |
| #3 | Building materials | |
| #4 | Pistons and sealings | |
| #5 | Furnaces | |
| #6 | Climate change mitigation in goods production | |
| #7 | Load transportation vehicles | |
| #8 | Servomotors |
| # | Name | Total Patents |
|---|---|---|
| #1 | Keplinger Klaus | 8 |
| #2 | Hiesinger Edwin | 8 |
| #3 | Nessler Hermann | 6 |
| #4 | Keplinger K | 3 |
| #5 | Hiesinger E | 3 |
| #6 | Nessler H | 3 |
| #7 | Nessler Hermann Dipl Ing | 1 |
| Publication | Filing date | Title |
|---|---|---|
| ATA205780A | Filtration device | |
| GB1603968A | Filtering apparatus and method | |
| DE2621004A1 | Vertical shaft furnace for mfg. cement clinker - using gas or oil burned in bell chamber suspended in upper part of shaft | |
| DE2157749A1 | LIQUID TANK WITH FILTER AND COOLING DEVICE |