David E. Livingstone
20Patents
10h-index
39Co-inventors
71Inventor score
Filing activity: Jun 24, 1998 → Jan 11, 2017
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6809280B2 | Pressure activated switch and touch panel | Physics | 99 | Expired |
| US6454834B1 | Regenerable air cleaning device | Performing Operations; Transporting | 58 | Expired |
| US7748381B2 | Portable blower system | Human Necessities | 41 | Active |
| US6569494B1 | Method and apparatus for making particle-embedded webs | Performing Operations; Transporting | 30 | Expired |
| US6275603A | Method and apparatus for detecting glass particles in glass bottles filled with beer | Physics | 28 | Expired |
| US8388717B2 | Furnace filter adapters and braces | Performing Operations; Transporting | 20 | Active |
| US7131616B2 | Collapsible hook with two magnets | Mechanical Engineering; Lighting; Heating | 18 | Expired |
| USD636439S1 | Stiletto shoe shaped tape dispenser | General | 12 | Expired |
| US6927367B2 | Automatic temperature control system and method | Physics | 12 | Expired |
| USD696723S1 | Note dispenser | General | 11 | Active |
| US6834612B2 | Method and apparatus for making particle-embedded webs | Performing Operations; Transporting | 8 | Expired |
| USD630253S1 | Note dispenser | General | 3 | Expired |
| US7223038B2 | Spreading apparatus for flowable materials | Performing Operations; Transporting | 2 | Expired |
| US7320341B2 | Protective liner for slurry pipelines | Mechanical Engineering; Lighting; Heating | 2 | Expired |
| USD542630S1 | Hook | General | 1 | Expired |
| US7496001B2 | Light and noise maker for diving use | Performing Operations; Transporting | 1 | Active |
| US9278889B2 | Method of reinforcing irregular structures | Chemistry; Metallurgy | 1 | Active |
| US7213296B2 | Spreading apparatus for flowable materials and spreader pad therefor | Performing Operations; Transporting | 0 | Expired |
| US10683457B2 | Solid composite intumescent structures for fire protection | Chemistry; Metallurgy | 0 | Active |
| US10834786B2 | Heating tape and system | Chemistry; Metallurgy | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.