| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 11 | |
| #2 | Canada | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machines | |
| #2 | Packaging and shipping | |
| #3 | Mechanical elements | |
| #4 | Transport | |
| #5 | Weapons |
| # | Technology | |
|---|---|---|
| #1 | Explosive charges | |
| #2 | Springs | |
| #3 | Containers for goods storage | |
| #4 | Unspecified technologies | |
| #5 | Convertible vehicles | |
| #6 | Explosiveness missiles |
| # | Name | Total Patents |
|---|---|---|
| #1 | Zwickey Clifford J | 12 |
| Publication | Filing date | Title |
|---|---|---|
| US3241836A | Arrowhead with resiliently mounted prongs | |
| US3106400A | Archery arrows | |
| US3002608A | Package for arrow heads | |
| US3027153A | Spring structures | |
| US3167062A | Arm guard and attaching bracket | |
| US3064977A | Arrow heads | |
| US3084939A | Arrowhead | |
| US2671664A | Arrowhead | |
| US2628837A | Arrowhead with resilient arms | |
| US2373216A | Arrowhead | |
| US1450197A | Sport car | |
| CA673816A | Arrowhead |