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

John Ham — 6 Patents

ZIZih: 3 patents #65 of 277Top 25%
DPData Products: 2 patents #28 of 148Top 20%
ZTZebra Technologies: 1 patents #422 of 699Top 65%
Craydon Court, CA: #97 of 407 inventorsTop 25%
California: #94,478 of 386,348 inventorsTop 25%
Overall (All Time): #779,687 of 4,157,543Top 20%
6 Patents All Time
John Ham has been granted 6 US patents while listed as an inventor at Zih. The first was granted in 1981 and the most recent in March 2019. John Ham ranks #779,687 of 4,157,543 US inventors in our database (top 18.8%). Patent records list John Ham in Craydon Court, CA, US.

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
10241733 Methods and apparatus for supplying power to a printer David L. Poole, Douglas A. Fox, Robert A. Ehrhardt, Eugene K. Brown, Rod W. DeMay +2 more 2019-03-26 $85,365,000
9747062 Ethernet and USB powered printers and methods for supplying Ethernet and USB power to a printer David L. Poole, Douglas A. Fox, Robert A. Ehrhardt, Eugene K. Brown, Rod W. DeMay +2 more 2017-08-29
9189184 Ethernet and USB powered printers and methods for supplying Ethernet and USB power to a printer David L. Poole, Douglas A. Fox, Robert A. Ehrhardt, Eugene K. Brown, Rod W. DeMay +2 more 2015-11-17
8587825 Ethernet and USB powered printers and methods for supplying ethernet and USB power to a printer David L. Poole, Douglas A. Fox, Robert A. Ehrhardt, Eugene K. Brown, Rod W. DeMay +2 more 2013-11-19
4806031 Uniform print density and registration in an impact printer Paul Amdahl, Doina Mazilu 1989-02-21 $3,635,000
4282583 Microprogrammable processor control printer system Sultan W. Khan, Richard A. Strissel 1981-08-04 $2,584,000