| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 2 | |
| #2 | Australia | 1 | |
| #3 | Canada | 1 | |
| #4 | Denmark | 1 | |
| #5 | EPO (European Patent Office) | 1 | |
| #6 | Spain | 1 | |
| #7 | Israel | 1 | |
| #8 | Norway | 1 | |
| #9 | Portugal | 1 | |
| #10 | USSR (Union of Socialist Soviet Republics) | 1 | |
| #11 | WIPO (World Intellectual Property Organization) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Packaging and shipping |
| # | Technology | |
|---|---|---|
| #1 | Closing and opening bottles |
| # | Name | Total Patents |
|---|---|---|
| #1 | Warburg Richard J | 9 |
| Publication | Filing date | Title |
|---|---|---|
| DK369688A | Opening to a closed container | |
| IL84464D0 | Closed container opener | |
| US4683782A | Microcentrifuge tube opener |