Inventor · Richmond, VA, US

Charles Thomas

8Patents
6h-index
27Co-inventors
59Inventor score

Filing activity: Oct 21, 1998 → Oct 31, 2007

Most-cited inventions

PatentTitleAreaCited byStatus
US6116247A Cleaning unit for the heater fixture of a smoking device Human Necessities 130 Expired
US6814786B1 Filters including segmented monolithic sorbent for gas-phase filtration Human Necessities 52 Expired
US6913784B2 Continuous process for impregnating solid adsorbent particles into shaped micro-cavity fibers and fiber filters Human Necessities 19 Expired
US7784470B2 Cigarette filter with beaded carbon Performing Operations; Transporting 10 Expired
US7552735B2 Activated carbon fiber cigarette filter Human Necessities 7 Expired
US7784471B2 Cigarette filter with beaded carbon Human Necessities 6 Active
US6863074B2 Cigarette filters comprising unfunctionalized porous polyaromatic resins for removing gas phase constituents from mainstream tobacco smoke Human Necessities 6 Expired
US7997282B2 Cigarette filter with beaded carbon Performing Operations; Transporting 2 Active

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