Inventor · Boston, MA, US

David J. Warkentin

25Patents
9h-index
47Co-inventors
75Inventor score

Filing activity: Nov 19, 1986 → Dec 4, 2023

Most-cited inventions

PatentTitleAreaCited byStatus
US4926696A Optical micropressure transducer Electricity 53 Expired
US6563128B2 Base stabilization system Mechanical Engineering; Lighting; Heating 43 Expired
US4942767A Pressure transducer apparatus Electricity 40 Expired
US6904073B2 High power deep ultraviolet laser with long life optics Electricity 37 Expired
US8938333B2 Active wheel damping Performing Operations; Transporting 33 Active
US9102209B2 Anti-causal vehicle suspension Performing Operations; Transporting 33 Active
US9316667B2 Accelerometer leveling in an actively controlled vehicle suspension Physics 31 Active
US6704339B2 Lithography laser with beam delivery and beam pointing control Electricity 28 Expired
US10244306B1 Real-time detection of feedback instability Electricity 24 Active
US10748521B1 Real-time detection of conditions in acoustic devices Electricity 8 Active
US10199030B2 Arraying speakers for a uniform driver field Electricity 5 Active
US9424828B2 System and method of microphone placement for noise attenuation Electricity 5 Active
US10553195B2 Dynamic compensation in active noise reduction devices Electricity 4 Active
US9952253B2 Accelerometer leveling in an actively controlled vehicle suspension Physics 3 Active
US6872961B2 Vibration control utilizing signal detrending Emerging Cross-Sectional Technologies 3 Expired
US9446651B2 Anti-causal vehicle suspension Performing Operations; Transporting 2 Active
US11875768B2 Wearable active noise reduction (ANR) device having low frequency feedback loop modulation Electricity 0 Active
US11996078B2 Real-time detection of feedback instability Physics 0 Active
US10663482B2 Accelerometer leveling in an actively controlled vehicle suspension Physics 0 Active
US10601387B2 Noise estimation using coherence Electricity 0 Active
US9640169B2 Arraying speakers for a uniform driver field Electricity 0 Active
US12300209B2 Wearable active noise reduction (ANR) device having low frequency feedback loop modulation Electricity 0 Active
US10840870B2 Noise estimation using coherence Electricity 0 Active
US11164554B2 Wearable active noise reduction (ANR) device having low frequency feedback loop modulation Electricity 0 Active
US11568849B2 Wearable active noise reduction (ANR) device having low frequency feedback loop modulation Electricity 0 Active

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.