| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 28 |
| # | Industry | |
|---|---|---|
| #1 | Machines | |
| #2 | Engines, pumps and turbines | |
| #3 | Measurement | |
| #4 | Weapons |
| # | Technology | |
|---|---|---|
| #1 | Explosive charges | |
| #2 | Jet-propulsion plants | |
| #3 | Measuring force, work and fluid pressure | |
| #4 | Ammunition fuzes | |
| #5 | Explosiveness missiles | |
| #6 | Armour | |
| #7 | Analysing materials |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hickman Clarence N | 28 |
| #2 | Dempster Arthur J | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2701525A | Mortar shell loading driver rocket | |
| US2522514A | Arming device | |
| US2471745A | Spacer trap for rockets | |
| US2724237A | Rocket projectile having discrete flight initiating and sustaining chambers | |
| US2633702A | Multiple nozzle rocket | |
| US2976804A | Separation means | |
| US2583570A | Nozzle for rocket motors | |
| US2519905A | Driver rocket | |
| US2510110A | Step-motor rocket projectile | |
| US2943673A | Flame thrower | |
| US2460289A | Rocket projectile | |
| US2503271A | Rocket projectile | |
| US2721518A | Projectile | |
| US2620732A | Mortar charge | |
| US2605607A | Trap for rocket propellent | |
| US2502458A | Trap for rocket propellants | |
| US2503270A | Trap for rocket propellants | |
| US2472108A | Thrust gauge for projectiles | |
| US2446537A | Thrust gauge | |
| US2549811A | Powder trap |