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USPTO Patent Rankings Data through Dec 31, 2025
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Eric Ludwig — 3 Patents

STSpeedline Technologies: 1 patents #45 of 83Top 55%
WMWatlow Electric Manufacturing: 1 patents #154 of 233Top 70%
Chesterfield, MO: #1,913 of 6,461 inventorsTop 30%
Missouri: #6,669 of 23,789 inventorsTop 30%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
Eric Ludwig has been granted 3 US patents while listed as an inventor at Speedline Technologies. The first was granted in 2007 and the most recent in April 2025. Eric Ludwig ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Eric Ludwig in Chesterfield, MO, US.

Patents per Year

Patents granted per year, 2007 to 2025Bar chart with a peak of 1 patents in 2007.peak 12007: 1 patents20072018: 1 patents20182025: 1 patents2025

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
12281947 Multipoint series sensor in electric heating elements Xin Liu 2025-04-22
9925735 Quilling tool Mimillia May 2018-03-27
7213738 Selective wave solder system Keith Howell, Troy Beard 2007-05-08

Frequent Collaborators

Xin Liu1 shared
Mimillia May1 shared
Troy Beard1 shared
Keith Howell1 shared

Nearby-Ranked Inventors

Daniel Silion3
Hangfeng Li3
Mark Vander Wal3
Chad M. Goltzman3
Sathish Kumar Thanganathan3
Debbie Maloyd3
Ethan Alexander Garrett3
Paul Sabatka3
Sergii Bomko3