Brian E. Spencer
57Patents
13h-index
45Co-inventors
84Inventor score
Filing activity: Jun 18, 1990 → Mar 25, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| USD824832S1 | Wheel | General | 52 | Active |
| US6183226A | Progressive cavity motors using composite materials | Mechanical Engineering; Lighting; Heating | 46 | Expired |
| US5759019A | Progressive cavity pumps using composite materials | Mechanical Engineering; Lighting; Heating | 40 | Expired |
| US5944124A | Composite material structures having reduced signal attentuation | Physics | 35 | Expired |
| US6786233B1 | Boom utilizing composite material construction | Emerging Cross-Sectional Technologies | 29 | Expired |
| US5988300A | Composite material structures having reduced signal attenuation | Physics | 24 | Expired |
| US6072252A | Composite electric motor shaft | Emerging Cross-Sectional Technologies | 20 | Expired |
| US6755212B1 | Boom stiffening system | Emerging Cross-Sectional Technologies | 18 | Expired |
| USD941203S1 | Vehicle body | General | 17 | Active |
| US7662251B2 | Method of manufacturing composite riser | Fixed Constructions | 16 | Active |
| USD953204S1 | Vehicle | General | 16 | Active |
| US5540621A | Rotary coupling apparatus using composite materials | Performing Operations; Transporting | 15 | Expired |
| US6719058B2 | Multiple seal design for composite risers and tubing for offshore applications | Mechanical Engineering; Lighting; Heating | 13 | Expired |
| US6719009B1 | Composite material piping system | Emerging Cross-Sectional Technologies | 13 | Expired |
| USD977382S1 | Front bumper skid plate | General | 12 | Active |
| USD862342S1 | Wheel | General | 11 | Active |
| USD957989S1 | Vehicle headlamp | General | 9 | Active |
| US6698451B2 | Conveying pipeline mounted inside a boom | Emerging Cross-Sectional Technologies | 9 | Expired |
| USD941184S1 | Vehicle body | General | 9 | Active |
| US7857294B2 | Composite springs and methods of manufacture | Performing Operations; Transporting | 8 | Active |
| USD941706S1 | Vehicle body | General | 8 | Active |
| US6150743A | Composite motor end housing with a metallic sleeve bearing support | Emerging Cross-Sectional Technologies | 7 | Expired |
| US7128094B2 | Boom utilizing composite material construction | Emerging Cross-Sectional Technologies | 7 | Expired |
| US6105981A | Adjustable steering axle, trailer, and method for operating a trailer | Performing Operations; Transporting | 5 | Expired |
| US7781039B2 | Boom utilizing composite material construction | Emerging Cross-Sectional Technologies | 4 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.