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

John T. Ralph — 3 Patents

CDControl Data: 2 patents #17 of 192Top 9%
Mission Viejo, CA: #585 of 1,522 inventorsTop 40%
California: #150,760 of 386,348 inventorsTop 40%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
John T. Ralph has been granted 3 US patents while listed as an inventor at Control Data. The first was granted in 1989 and the most recent in August 1993. John T. Ralph ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list John T. Ralph in Mission Viejo, CA, US.

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
5237567 Processor communication bus Daniel L. Nay, Darryl K. Korn 1993-08-17 $1,842,000
4999771 Communications network Guy B. Beckley, Frank T. Brady, Ivan Jelenek, Darryl K. Korn, John Meyer +5 more 1991-03-12
4878197 Data communication apparatus Daniel L. Nay, Darryl K. Korn 1989-10-31