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Christopher D. Speakman — 3 Patents

INInfosight: 3 patents #4 of 6Top 70%
Greenfield, OH: #1 of 2 inventorsTop 50%
Ohio: #23,545 of 73,341 inventorsTop 35%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
Christopher D. Speakman has been granted 3 US patents while listed as an inventor at Infosight. The first was granted in 2002 and the most recent in July 2004. Christopher D. Speakman ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Christopher D. Speakman in Greenfield, OH, US.

Patents per Year

Patents granted per year, 2002 to 2004Bar chart with a peak of 1 patents in 2002.peak 12002: 1 patents20022003: 1 patents20032004: 1 patents2004

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6764016 Identification method for dip galvanizing John A. Robertson, Edward S. O'Neal, G. D. Stephen Hudelson 2004-07-20
6518542 Colored patch laser marking John A. Robertson, Ken R. Vaughn, Edward S. O'Neal 2003-02-11
6451421 Laser markable micro-pore aluminum tags and method of their fabrication John A. Robertson, Edward S. O'Neal, Ken R. Vaughn 2002-09-17

Frequent Collaborators

John A. Robertson3 shared
Edward S. O'Neal3 shared
Ken R. Vaughn2 shared
G. D. Stephen Hudelson1 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