| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 3 | |
| #2 | Austria | 2 | |
| #3 | Switzerland | 2 | |
| #4 | Germany | 2 | |
| #5 | France | 2 | |
| #6 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy |
| # | Technology | |
|---|---|---|
| #1 | Electric discharge tubes | |
| #2 | Electric incandescent lamps |
| # | Name | Total Patents |
|---|---|---|
| #1 | Cornelis Ghijsen Huibert | 2 |
| #2 | Vitrite Works N V The | 2 |
| #3 | Cornelis Ghysen Huibert | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB359310A | Improvements relating to the caps of incandescent electric lamps for use in holders of the edison type | |
| US1331755A | Apparatus for the manufacturing and adjustment of contact-plates in swan lamp-bases | |
| US1340041A | Method of the manufacturing and adjustment of contact-plates in swanlamp bases |