Inventor · Crystal Lake, IL, US

David Orwick

10Patents
5h-index
20Co-inventors
62Inventor score

Filing activity: Jul 20, 1998 → Dec 21, 2009

Most-cited inventions

PatentTitleAreaCited byStatus
US6370149B1 Telecommunication system, method and subscriber unit for use therein Electricity 110 Expired
US6201856A Emergency telephone call notification service system and method Electricity 84 Expired
US6411704B1 System and method for providing telephony services to remote subscribers Emerging Cross-Sectional Technologies 50 Expired
US7020268B2 System and method for providing telephony services to remote subscribers Emerging Cross-Sectional Technologies 6 Expired
US6735285B2 Emergency telephone call notification service system and method Electricity 6 Expired
US6807272B2 System and method for providing telephony services to remote subscribers Emerging Cross-Sectional Technologies 3 Expired
US7272221B2 System and method for providing telephony services to remote subscribers Emerging Cross-Sectional Technologies 2 Expired
US7187686B1 Telecommunication system, method and subscriber unit for use therein Electricity 1 Expired
US7126958B2 Telecommunication system, method and subscriber unit for use therein Electricity 0 Expired
US8705703B2 Emergency telephone call notification service system and method Electricity 0 Active

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