Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
JO

John O'Keefe — 6 Patents

EMEmn8: 3 patents #1 of 9Top 15%
TLTrw Limited: 2 patents #579 of 2,166Top 30%
TITillster: 1 patents #5 of 16Top 35%
La Cañada Flintridge, CA: #85 of 465 inventorsTop 20%
California: #94,478 of 386,348 inventorsTop 25%
Overall (All Time): #779,687 of 4,157,543Top 20%
6 Patents All Time
John O'Keefe has been granted 6 US patents while listed as an inventor at Emn8. The first was granted in 1986 and the most recent in March 2017. John O'Keefe ranks #779,687 of 4,157,543 US inventors in our database (top 18.8%). Patent records list John O'Keefe in La Cañada Flintridge, CA, US.

Patents per Year

Patents granted per year, 1986 to 2017Bar chart with a peak of 1 patents in 1986.peak 11986: 1 patents19861993: 1 patents19932010: 1 patents20102012: 1 patents20122013: 1 patents20132017: 1 patents2017

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
9600813 Point of sale computer system delivering composited two- and three-dimensional images Paul Sidlo, William Kovacs, Philip Brock, Jonathan Humpherys, Andrew Whiddett +2 more 2017-03-21
8438065 Point of sale computer system delivering composited two- and three-dimensional images Paul Sidlo, William Kovacs, Philip Brock, Jonathan Humpherys, Andrew Whiddett +2 more 2013-05-07
8234171 Point of sale computer system delivering composited two- and three-dimensional images Paul Sidlo, William Kovacs, Philip Brock, Jonathan Humpherys, Andrew Whiddett +2 more 2012-07-31
7801763 Point of sale computer system delivering composited two- and three-dimensional images Paul Sidlo, William Kovacs, Philip Brock, Jonathan Humpherys, Andrew Whiddett +2 more 2010-09-21
5248977 One-dimensional electronic image scanner Paul S. C. Lee 1993-09-28 $6,778,000
4598408 High extraction efficiency cylindrical ring resonator 1986-07-01 $7,255,000