Ronald L. Pettyjohn has been granted 6 US patents while listed as an inventor at AMD . The first was granted in 2003 and the most recent in September 2025. Ronald L. Pettyjohn ranks #779,687 of 4,157,543 US inventors in our database (top 18.8%). Patent records list Ronald L. Pettyjohn in Concord, MA, US.
Patents per Year Patents granted per year, 2003 to 2025 Bar chart with a peak of 2 patents in 2013. peak 2 2003: 1 patents 2003 2008: 1 patents 2008 2013: 2 patents 2013 2016: 1 patents 2016 2025: 1 patents 2025
Issued Patents All Time
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Showing 1–6 of 6 patents
Patent # Title Co-Inventors Date Approx Value ⓘ
12423019 Read gate training and tracking David Lin , Pouya Najafi Ashtiani , Gershom Birk , Anwar Kashem 2025-09-23
9274938 Dynamic RAM Phy interface with configurable power states Shawn Searles , Nicholas T. Humphries , Brian Amick , Richard W. Reeves , Hanwoo Cho 2016-03-01
$579,000
8373447 Method and apparatus of alternating service modes of an SOI process circuit Joseph Kidd , Brian Amick , Ryan J. Hensley , James R. Magro 2013-02-12
$3,346,000
8356155 Dynamic RAM Phy interface with configurable power states Shawn Searles , Nicholas T. Humphries , Brian Amick , Richard W. Reeves , Hanwoo Cho 2013-01-15
$3,701,000
7418523 Operation of a multiplicity of time sorted queues with reduced memory Walter Clark Milliken 2008-08-26
$6,923,000
6526062 System and method for scheduling and rescheduling the transmission of cell objects of different traffic types Walter Clark Milliken , Steven Kohalmi , Philip P. Carvey , Stanley P. Sassower , Craig Partridge 2003-02-25
$779,506,000
