Kwin Abram
29Patents
9h-index
17Co-inventors
72Inventor score
Filing activity: Jun 16, 1997 → Aug 16, 2017
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US8201401B2 | Passive valve assembly with negative start angle | Emerging Cross-Sectional Technologies | 16 | Active |
| US10047650B2 | Vehicle exhaust system with resistive patch | Mechanical Engineering; Lighting; Heating | 12 | Active |
| US7155333B1 | Method and apparatus for controlling sound of an engine by sound frequency analysis | Mechanical Engineering; Lighting; Heating | 11 | Expired |
| US7536990B2 | Hybrid exhaust valve assembly | Mechanical Engineering; Lighting; Heating | 11 | Active |
| US7401592B2 | Hybrid exhaust valve assembly | Mechanical Engineering; Lighting; Heating | 11 | Active |
| US8439156B1 | Muffler with controlled pressure release | Mechanical Engineering; Lighting; Heating | 10 | Active |
| US9970340B2 | Vehicle exhaust system with resonance damping | Mechanical Engineering; Lighting; Heating | 9 | Active |
| US7748404B2 | Multi-purpose exhaust valve spring | Emerging Cross-Sectional Technologies | 9 | Active |
| US7628250B2 | Passive valve assembly for vehicle exhaust system | Mechanical Engineering; Lighting; Heating | 9 | Active |
| US8881863B2 | Exhaust gas carrying component of an exhaust gas system | Mechanical Engineering; Lighting; Heating | 7 | Active |
| US9376947B2 | Hybrid valve for attenuation of low frequency noise | Emerging Cross-Sectional Technologies | 7 | Active |
| US8453672B2 | Passive valve for attenuation of low frequency noise | Emerging Cross-Sectional Technologies | 7 | Active |
| US9624837B2 | Adaptive valve spring retainer | Emerging Cross-Sectional Technologies | 7 | Active |
| US9121315B2 | Passive valve with stop pad | Mechanical Engineering; Lighting; Heating | 7 | Active |
| US8857561B2 | Exhaust valve combined with active noise control system | Mechanical Engineering; Lighting; Heating | 6 | Active |
| US8365522B2 | Dual exhaust system with independent valve control | Mechanical Engineering; Lighting; Heating | 4 | Active |
| US8776508B2 | Passive valve assembly with negative start angle | Mechanical Engineering; Lighting; Heating | 4 | Active |
| US5875752A | Engine drive train having a front gear train with improved torsional dynamics | Emerging Cross-Sectional Technologies | 3 | Expired |
| US8683789B2 | Exhaust valve assembly with intermediate position | Mechanical Engineering; Lighting; Heating | 2 | Active |
| US7581710B2 | Thermally isolated actuator with temporary contacting linkage for an exhaust valve | Mechanical Engineering; Lighting; Heating | 2 | Active |
| US8955641B2 | Passive valve and resonator assembly for vehicle exhaust system | Mechanical Engineering; Lighting; Heating | 2 | Active |
| US8672090B1 | Exhaust component with vibration isolated pipe | Emerging Cross-Sectional Technologies | 2 | Active |
| US7584938B2 | Side loaded valve assembly | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US9816414B2 | Adaptive valve spring retainer with vibration damping | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US8191581B2 | Wire tube structure for exhaust component | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.