David Altfeder — 4 Patents at Troy Group

David Altfeder has been granted 4 US patents while listed as an inventor at Troy Group. The first was granted in 2015 and the most recent in August 2020. David Altfeder ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list David Altfeder in Aberdeen, NC, US.

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #	Title	Co-Inventors	Date
10733825	Covert secure document registration system	Brian Lewis, Xiaorong Cai, Michael R. Riley	2020-08-04
10475269	Covert secure document registration system	Brian Lewis, Xiaorong Cai, Michael R. Riley	2019-11-12
9087288	Method of generating void pantographs	Jason Zimpelmann	2015-07-21
9088735	Computer-based system and method for adding variable security data in printing operations	—	2015-07-21

David Altfeder — 4 Patents

Issued Patents All Time

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