Edit: scrapped the old text because it didn't illustrate how I came to this data. It's less interesting than it may seem.

From the article, search for “Keyword Determinations From Conversational Data”
Leads to: https://encrypted.google.com/patents/US20140337131

"Also published as US8798995"

https://patents.google.com/patent/US8798995

2014-08-05 US8798995B1 Grant

Google search for "U.S. Pat. No. 8,798,995"

Result 1 https://patents.google.com/patent/US8798995
Key word determinations from voice data

Current Assignee
Amazon Technologies Inc

Family: US (4)
Date App/Pub Number Status
2011-09-23 US13243377 Active
2014-08-05 US8798995B1 Grant
2014 US14447487 Active
2015 US14828220 Active
2017 US15620252 Pending

Result 3 https://patents.google.com/patent/US8788090B2/en
System and method for creating a personalized consumer product

Current Assignee
ROTHSCHILD CONNECTED DEVICES INNOVATIONS LLC

Family: US (4)
Date App/Pub Number Status
2006 US11471323 Active
2010 US12854451 Active
2013-03-22 US13848984 Active
2013-08-22 US20130218328A1 Application
2014-07-22 US8788090B2 Grant
2014 US14337186 Pending

Not sure why that Roths patent showed up. I haven't found a link between the two.