| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 11 | |
| #2 | Canada | 2 | |
| #3 | Germany | 2 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machines | |
| #3 | Control | |
| #4 | Mechanical elements | |
| #5 | Engines, pumps and turbines |
| # | Technology | |
|---|---|---|
| #1 | Locks | |
| #2 | Unspecified technologies | |
| #3 | Coin-freed | |
| #4 | Lubricating | |
| #5 | Venting or aerating devices | |
| #6 | Lubricating of machines |
| # | Name | Total Patents |
|---|---|---|
| #1 | Wellekens John F | 13 |
| #2 | Pickering Lenox K | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US4094177A | Tamper-resistant lock and key assembly | |
| US3933380A | Lock mechanism | |
| US3872697A | Lock mechanism | |
| US3659444A | Locks | |
| US3464241A | Locking pins and fittings therefor | |
| US3167944A | Tumbler lock | |
| US3016839A | Torque valves | |
| US2851324A | Supply magazines for can-dispensing apparatus | |
| US2765005A | Apparatus for dispensing beverages | |
| US2233462A | Cup delivering mechanism | |
| US2071600A | Game device | |
| CA817017A | Locks | |
| CA778573A | Locks |