| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 3 | |
| #2 | Brazil | 2 | |
| #3 | EPO (European Patent Office) | 2 | |
| #4 | United States | 2 | |
| #5 | Ireland | 1 | |
| #6 | Poland | 1 | |
| #7 | Portugal | 1 | |
| #8 | South Africa | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machines | |
| #2 | Consumer goods | |
| #3 | Civil engineering | |
| #4 | Audio-visual technology | |
| #5 | Machine tools |
| # | Technology | |
|---|---|---|
| #1 | Hand carried bags | |
| #2 | Locks | |
| #3 | Unspecified technologies | |
| #4 | Unspecified technologies | |
| #5 | Punching metal | |
| #6 | Advertising |
| # | Name | Total Patents |
|---|---|---|
| #1 | Almblad Donald F | 7 |
| #2 | Almblad Robert | 3 |
| #3 | Drehobl Thomas L | 2 |
| #4 | Mueller Michael A | 2 |
| #5 | Almblad Robert E | 1 |
| Publication | Filing date | Title |
|---|---|---|
| IE882572L | Plastic key | |
| PL274407A1 | Key made of plastic material with strengthened cap | |
| EP0305588A2 | Reinforced shank plastic key | |
| EP0240804A2 | Plastic card/key combination and hinge structure | |
| US4651604A | Apparatus for and method of duplicative punched notching of the serration edges of key blanks | |
| US4637236A | Key and retainer card combination |