Inventor · Racine, WI, US

David A. Tomkins

12Patents
10h-index
23Co-inventors
68Inventor score

Filing activity: Nov 7, 1985 → Nov 10, 2003

Most-cited inventions

PatentTitleAreaCited byStatus
US7687744B2 Coordinated emission of fragrance, light, and sound Human Necessities 119 Expired
US6341732B1 Method and apparatus for maintaining control of liquid flow in a vibratory atomizing device Performing Operations; Transporting 91 Expired
US6293474A Delivery system for dispensing volatiles Performing Operations; Transporting 69 Expired
US7610118B2 Dispensing of multiple volatile substances Human Necessities 58 Expired
US6378780B1 Delivery system for dispensing volatiles Performing Operations; Transporting 50 Expired
US6450419B1 Self contained liquid atomizer assembly Performing Operations; Transporting 40 Expired
US6843430B2 Low leakage liquid atomization device Performing Operations; Transporting 36 Expired
US6382522B2 Attachment method for piezoelectric elements Performing Operations; Transporting 31 Expired
US7017829B2 Atomizer wicking system Performing Operations; Transporting 23 Expired
US6752327B2 Atomizer with tilted orifice plate and replacement reservoir for same Performing Operations; Transporting 21 Expired
US4668507A Corrosion resistant insecticial composition Chemistry; Metallurgy 10 Expired
US5400975A Actuators for electrostatically charged aerosol spray systems Performing Operations; Transporting 10 Expired

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