| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 4 | |
| #2 | Austria | 2 | |
| #3 | Switzerland | 2 | |
| #4 | Netherlands | 2 | |
| #5 | Canada | 1 | |
| #6 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Materials and metallurgy | |
| #2 | Basic materials chemistry | |
| #3 | Electrical machinery and energy | |
| #4 | Audio-visual technology | |
| #5 | Thermal processes |
| # | Technology | |
|---|---|---|
| #1 | Building materials | |
| #2 | Materials for miscellaneous applications | |
| #3 | Television | |
| #4 | Electric discharge tubes | |
| #5 | Details of furnaces |
| # | Name | Total Patents |
|---|---|---|
| #1 | Bolsing Friedrich | 2 |
| #2 | Boelsing Friedrich Dr | 2 |
| #3 | Weithase Hellmut Dr | 2 |
| #4 | Weithase Hellmut | 2 |
| #5 | Weithase Dr Phil Nat Hellmut | 1 |
| #6 | Hann Dr Hellmut Weithase Ander | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CH499693A | Ground strengthening with portland cement | |
| GB1188713A | Process for Increasing the Storage Life of Cement | |
| DE1300856B | Process for the production of hydrophobic cement | |
| DE1239605B | Process for increasing the shelf life of cement | |
| DE1086615B | Stone used for lining open fires | |
| CA890959A | Process for increasing the capacity for storage of cement |