| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 6 | |
| #2 | Canada | 3 | |
| #3 | Mexico | 2 | |
| #4 | WIPO (World Intellectual Property Organization) | 2 | |
| #5 | Australia | 1 | |
| #6 | Brazil | 1 | |
| #7 | China | 1 | |
| #8 | EPO (European Patent Office) | 1 | |
| #9 | Republic of Korea | 1 |
| # | Industry | |
|---|---|---|
| #1 | Packaging and shipping | |
| #2 | Mechanical elements | |
| #3 | Control | |
| #4 | Transport | |
| #5 | IT methods for management |
| # | Technology | |
|---|---|---|
| #1 | Transport or storage devices | |
| #2 | Shafts | |
| #3 | Railway systems | |
| #4 | Coin-freed | |
| #5 | Registering cash receipt | |
| #6 | Data processing systems |
| # | Name | Total Patents |
|---|---|---|
| #1 | Frost Charles C | 10 |
| #2 | Waldmiller Lee R | 3 |
| #3 | Rathbun Jonathan M | 2 |
| #4 | Schmidt Wayne E | 2 |
| #5 | Frost Matthew L | 2 |
| #6 | Sytsma Frederick R | 1 |
| #7 | Frost Matthew | 1 |
| #8 | Charles C Frost | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2019197544A1 | Systems and methods for automated customer fulfillment of products | |
| US2009044719A1 | Trolley assembly with non-rotatable axle | |
| US2005217531A1 | Trolley attachment | |
| WO2004048126A2 | Journal bearing for trolley wheel | |
| US4863293A | Sealed bearing assembly |