Johnson Research & Development Co., Inc.
67Patents
8Active
67Granted
41Portfolio score
Filing activity: Jul 23, 1991 → Apr 1, 2015 · 5 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5838240A | Wet diaper detector | Human Necessities | 86 | Expired |
| US6387563B1 | Method of producing a thin film battery having a protective packaging | Emerging Cross-Sectional Technologies | 67 | Expired |
| US6364162B1 | Automatic pressurized fluid gun | Mechanical Engineering; Lighting; Heating | 51 | Expired |
| US6408837B1 | Toy gun with magazine | Mechanical Engineering; Lighting; Heating | 50 | Expired |
| US6220237A | Compressed air toy gun | Mechanical Engineering; Lighting; Heating | 50 | Expired |
| US5982144A | Rechargeable battery power supply overcharge protection circuit | Electricity | 49 | Expired |
| US6966651B2 | Portable multimedia projection system | Electricity | 47 | Expired |
| US6511516B1 | Method and apparatus for producing lithium based cathodes | Emerging Cross-Sectional Technologies | 43 | Expired |
| US5586688A | Electric pump toy water gun | Mechanical Engineering; Lighting; Heating | 42 | Expired |
| US6582481B1 | Method of producing lithium base cathodes | Emerging Cross-Sectional Technologies | 40 | Expired |
| US5878734A | Multiple barrel compressed air gun | Mechanical Engineering; Lighting; Heating | 37 | Expired |
| US6042965A | Unitary separator and electrode structure and method of manufacturing separator | Emerging Cross-Sectional Technologies | 36 | Expired |
| US6180281A | Composite separator and electrode | Emerging Cross-Sectional Technologies | 35 | Expired |
| US5924413A | Rapid fire compressed air toy gun | Mechanical Engineering; Lighting; Heating | 33 | Expired |
| US5819717A | Launcher for a toy projectile or similar launchable object | Human Necessities | 30 | Expired |
| US6119671A | Toy projectile launcher | Mechanical Engineering; Lighting; Heating | 29 | Expired |
| US5592931A | Compressed air gun with magazine indexer | Mechanical Engineering; Lighting; Heating | 27 | Expired |
| US6423106B1 | Method of producing a thin film battery anode | Emerging Cross-Sectional Technologies | 27 | Expired |
| US6321737A | Toy rocket launcher | Mechanical Engineering; Lighting; Heating | 26 | Expired |
| US5878914A | Toy water gun | Mechanical Engineering; Lighting; Heating | 26 | Expired |
| US6558223B1 | Toy water device | Human Necessities | 25 | Expired |
| US7052136B2 | Portable multimedia projection system | Electricity | 23 | Expired |
| US5553598A | Pneumatic launcher for a toy projectile and the like | Mechanical Engineering; Lighting; Heating | 22 | Expired |
| US5826750A | Toy water gun with fluid selection control valve | Mechanical Engineering; Lighting; Heating | 22 | Expired |
| US5787869A | Compressed air toy gun | Mechanical Engineering; Lighting; Heating | 21 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.