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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Cryogen › John Hayfield
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John Hayfield — 3 Patents

CRCryogen: 2 patents #7 of 15Top 50%
ARAms Research: 1 patents #143 of 236Top 65%
San Diego, CA: #9,932 of 23,606 inventorsTop 45%
California: #150,760 of 386,348 inventorsTop 40%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
John Hayfield has been granted 3 US patents while listed as an inventor at Cryogen. The first was granted in 2002 and the most recent in April 2005. John Hayfield ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list John Hayfield in San Diego, CA, US.

Patents per Year

Patents granted per year, 2002 to 2005Bar chart with a peak of 1 patents in 2002.peak 12002: 1 patents20022003: 1 patents20032005: 1 patents2005

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6878204 Methods and apparatus for applying a thermal conductive medium Charlotte F. Kinnison 2005-04-12
6572610 Cryogenic catheter with deflectable tip Steven W. Kovalcheck 2003-06-03
6471217 Sealing assembly Eric Ryba 2002-10-29

Frequent Collaborators

Charlotte F. Kinnison1 shared
Steven W. Kovalcheck1 shared
Eric Ryba1 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