1
William B McCormick, David Kopans, George Stojanoff: E-mail filter and method thereof. Accepted Marketing, Hoffman Wasson & Gitler PC, July 16, 2002: US06421709 (616 worldwide citation)

A system and method of filtering junk e-mails. A user is provided with or compiles a list of e-mail addresses or character strings which a user would not wish to receive to produce a first filter. A second filter is provided including names and character strings which the user wishes to receive. Any ...


2
William B McCormick, David Kopans: Method and system for filtering unwanted junk e-mail utilizing a plurality of filtering mechanisms. Accepted Marketing, Hoffman Wasson & Gitler PC, February 8, 2000: US06023723 (441 worldwide citation)

A system and method of filtering junk e-mails. The user is provided with or compiles a list of e-mail addresses or character strings which the user would not wish to receive to produce a first filter. A second filter is provided including names and character strings which the user wishes to receive. ...


3
David Kopans: Computer system and method for generating, exchanging, and valuing social currency. PF Loop, Robert Plotkin P C, Robert Plotkin, October 11, 2016: US09463383 (1 worldwide citation)

A computer system creates, stores, transmits, modifies, and enables users to exchange units of social currency, referred to as “social currency events” (SCEs). Each SCE represents social approval and/or disapproval of a behavior of one or more users by the same user or one or more other users. The u ...


4
David Kopans: Computer system and method for generating, exchanging, and valuing social currency. PF Loop, August 22, 2017: US09737809

A computer system creates, stores, transmits, modifies, and enables users to exchange units of social currency, referred to as “social currency events” (SCEs). Each SCE represents social approval and/or disapproval of a behavior of one or more users by the same user or one or more other users. The u ...


5
David Kopans: Computer system and method for generating, exchanging, and valuing social currency. PF Loop, Blueshift IP, Robert Plotkin, October 16, 2018: US10099131

A computer system creates, stores, transmits, modifies, and enables users to exchange units of social currency, referred to as “social currency events” (SCEs). Each SCE represents social approval and/or disapproval of a behavior of one or more users by the same user or one or more other users. The u ...