Inventor · Chicago, IL, US

Donald J. Townsend

30Patents
17h-index
29Co-inventors
77Inventor score

Filing activity: Sep 24, 1993 → Nov 13, 2003

Most-cited inventions

PatentTitleAreaCited byStatus
US5571543A Continuous gum base manufacture using paddle mixing Human Necessities 85 Expired
US5397580A Continuous gum base manufacture using sequential mixers Human Necessities 66 Expired
US5419919A Continuous gum base manufacture using paddle mixing Human Necessities 63 Expired
US5543160A Total chewing gum manufacture using high efficiency continuous mixing Human Necessities 52 Expired
US6627234B1 Method of producing active agent coated chewing gum products Human Necessities 45 Expired
US5523097A Continuous gum base manufacture using sequential mixers Human Necessities 40 Expired
US6949264B1 Nutraceuticals or nutritional supplements and method of making Human Necessities 39 Expired
US5486366A Continuous chewing gum base manufacturing process using a mixing-restriction element Performing Operations; Transporting 37 Expired
US5800847A Total chewing gum manufacture using high efficiency continuous mixing Human Necessities 34 Expired
US6428827B1 Long flavor duration releasing structures for chewing gum and method of making Human Necessities 33 Expired
US5562936A Continuous chewing gum base manufacturing process using highly distribute mixing Performing Operations; Transporting 30 Expired
US6692778B2 Method of controlling release of N-substituted derivatives of aspartame in chewing gum Human Necessities 29 Expired
US6586023B1 Process for controlling release of active agents from a chewing gum coating and product thereof Human Necessities 29 Expired
US5545416A Gum base made with reduced antioxidant and method of preparation Human Necessities 19 Expired
US6086925A Chewing gum base manufacturing process using plurality of lubricating agents feed inlets Human Necessities 18 Expired
US5773053A Chewing gum base manufacturing process using plurality of softening agents inlets Performing Operations; Transporting 18 Expired
US5612071A Continuous chewing gum manufacturing process yielding gum with improved flavor perception Human Necessities 17 Expired
US5976581A Continuous chewing gum manufacturing process using rework gum Human Necessities 15 Expired
US6010723A Method for manufacturing gum base Performing Operations; Transporting 13 Expired
US6238710A Method for continuous gum base manufacture Performing Operations; Transporting 12 Expired
US6030647A Continuous chewing gum manufacturing process for gum with controlled flavor release Human Necessities 11 Expired
US5908645A Continuous chewing gum manufacture from base concentrate Human Necessities 10 Expired
US5447565A Apparatus and method for coating particles Human Necessities 10 Expired
US6004589A Chewing gum base manufacturing process using plurality of filler feed inlet locations Human Necessities 10 Expired
US5614234A Total chewing gum manufacture using high efficiency continuous mixing Human Necessities 9 Expired

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