| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 7 | |
| #2 | United Kingdom | 6 | |
| #3 | France | 1 |
| # | Industry | |
|---|---|---|
| #1 | Chemical engineering | |
| #2 | Thermal processes | |
| #3 | Machines | |
| #4 | Materials and metallurgy | |
| #5 | Mechanical elements | |
| #6 | Transport |
| # | Technology | |
|---|---|---|
| #1 | Separating solids | |
| #2 | Milling | |
| #3 | Furnaces | |
| #4 | Casings for combustion chambers | |
| #5 | Railway systems | |
| #6 | Details of furnaces | |
| #7 | Metal production and refining | |
| #8 | Burners | |
| #9 | Shafts |
| # | Name | Total Patents |
|---|---|---|
| #1 | Helbig Albin Berthold | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB434467A | Improvements in pneumatic separators | |
| GB413204A | Improvements in and relating to pneumatic apparatus for separating granular substances | |
| GB412114A | Improvements in and relating to pneumatic apparatus for separating granular substances | |
| GB266827A | Improvements relating to powdered fuel furnaces | |
| GB240366A | Improvements relating to furnace walls | |
| GB225175A | Improvements in roller bearings or cradles for rotary drums |