| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Denmark | 4 | |
| #2 | Austria | 3 | |
| #3 | United Kingdom | 3 | |
| #4 | Canada | 2 | |
| #5 | Switzerland | 1 | |
| #6 | Spain | 1 | |
| #7 | France | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Centrifuges |
| # | Name | Total Patents |
|---|---|---|
| #1 | Lindberg Per Wilhelm | 12 |
| #2 | Wilhelm Lindberg Per | 1 |
| #3 | Per Wilhelm Lindberg | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CA79322A | Centrifugal separator | |
| GB190122308A | Improvements in Centrifugal Separators. | |
| CA72406A | Centrifugal apparatus | |
| GB190107237A | Improvements in Centrifugal Separators. | |
| GB190009254A | Improvements in Centrifugal Separators. |