| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 7 | |
| #2 | France | 6 | |
| #3 | Austria | 3 | |
| #4 | Netherlands | 3 | |
| #5 | South Africa | 3 | |
| #6 | Argentina | 2 | |
| #7 | Brazil | 2 | |
| #8 | Canada | 2 | |
| #9 | Germany | 2 | |
| #10 | Spain | 2 | |
| #11 | Italy | 2 | |
| #12 | Switzerland | 1 |
| # | Industry | |
|---|---|---|
| #1 | Packaging and shipping | |
| #2 | Machine tools |
| # | Technology | |
|---|---|---|
| #1 | Containers for goods storage | |
| #2 | Punching metal | |
| #3 | Closing and opening bottles |
| # | Name | Total Patents |
|---|---|---|
| #1 | Leenaards A | 5 |
| #2 | Leenaards Antoine J | 2 |
| #3 | Leenaards Antoine Joseph | 2 |
| #4 | Antoine Joseph Leenaards | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB1488322A | Metal sealing caps | |
| GB1524238A | Capping machines for threaded necks | |
| ZA7303207B | A theft-proof screw stopper | |
| CA940482A | Bouchons a vis antivol | |
| GB1309407A | Closure caps |