Douglas J. Birkholz
31Patents
17h-index
32Co-inventors
81Inventor score
Filing activity: Dec 30, 1991 → Dec 5, 2017
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7028866B2 | Pressurized plastic bottle for dispensing an aerosol | Performing Operations; Transporting | 72 | Expired |
| USD377588S | Tool handles | General | 56 | Expired |
| USD354890S | "5"" scissors" | General | 44 | Expired |
| USD361700S | Tool handle | General | 37 | Expired |
| USD359427S | Pivoted hand tool handle | General | 35 | Expired |
| USD369531S | Tool handle | General | 34 | Expired |
| USD470402S1 | Aerosol container with actuator overcap | General | 32 | Expired |
| USD339725S | Scissors | General | 31 | Expired |
| USD374597S | Utility knife | General | 29 | Expired |
| US5377412A | Softouch scissors | Performing Operations; Transporting | 28 | Expired |
| USD373385S | Punch tool | General | 26 | Expired |
| USD346542S | Rotary cutting tool | General | 25 | Expired |
| USD341764S | Rotary cutter | General | 25 | Expired |
| USD335807S | Scissors | General | 25 | Expired |
| USD501794S1 | Pressure container with actuator overcap | General | 25 | Expired |
| USD470753S1 | Aerosol container | General | 21 | Expired |
| USD365005S | Scissors | General | 18 | Expired |
| USD470752S1 | Aerosol container with actuator overcap and dust cover | General | 17 | Expired |
| USD806976S1 | Shopping cart shelf | General | 16 | Active |
| USD354423S | Scissors | General | 16 | Expired |
| USD360892S | Carriage for a rotary blade paper trimmer | General | 13 | Expired |
| USD361705S | Scissors | General | 12 | Expired |
| USD581010S1 | Bottle holder | General | 12 | Expired |
| US8651459B2 | Apparatus and method for dispensing fish tape | Electricity | 12 | Active |
| USD527602S1 | Retractable saw | General | 11 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.