| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 5 | |
| #2 | Australia | 4 | |
| #3 | WIPO (World Intellectual Property Organization) | 4 |
| # | Industry | |
|---|---|---|
| #1 | Furniture and games |
| # | Technology | |
|---|---|---|
| #1 | Toys |
| # | Name | Total Patents |
|---|---|---|
| #1 | Amaral Leonard R | 8 |
| #2 | Chicca Dana E | 3 |
| #3 | Chow Ki T | 1 |
| #4 | Marcantonio John V | 1 |
| #5 | Baier Harry | 1 |
| Publication | Filing date | Title |
|---|---|---|
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| US6196890B1 | Yo-yo and method for its manufacture | |
| US6494761B1 | Yo-yo and method for its manufacture | |
| US6220920B1 | Yo-yo with adjustable slot width |