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USPTO Patent Rankings Data through Dec 31, 2025
HL

Hi-Tech Engineering Limited — 5 Patents

Rank (All Time): #98,761 of 105,732Top 95%
6 inventors
5 Patents All Time

Patents per Year

Patents granted per year, 1985 to 2010Bar chart with a peak of 1 patents in 1985.peak 11985: 1 patents19851986: 1 patents19861997: 1 patents19972004: 1 patents20042010: 1 patents2010

Top Inventors at Hi-Tech Engineering Limited All Time

Showing 1–6 of 6 inventors

RankNamePatents
1 Otto A. Huiber 2
1 Patrick Conry 2
3 Christopher Raybon 1
3 Russell Kennedy 1
3 Thomas Hodgson 1
3 L. Charles Gaither 1

Most Valuable Patents

PatentEst. ValueYear
Piston seal access apparatus$86K1985
Valve leak detector$63K1986

All 100 most valuable US patents →