Inventor · disambiguated record
Harold O. Hilfiker
Also filed as: HILFIKER HAROLD O
3 granted patents·406 citations·filing 1979–1981
80Inventor score
Technology areasE02D
Top patents by PatentIndex Score
3 records- 0197US4391557ARetaining wall for earthen formations and method of making the sameHILFIKER PIPE CO·Filed 1981·Granted Jul 5, 1983·109 cites·8 claims
- 0297US4329089AMethod and apparatus for retaining earthen formations through means of wire structuresHILFIKER PIPE COMPANY·Filed 1979·Granted May 11, 1982·136 cites·20 claims
- 0397US4324508ARetaining and reinforcement system method and apparatus for earthen formationsHILFIKER PIPE CO·Filed 1980·Granted Apr 13, 1982·161 cites·4 claims
Join the waitlist — get patent alerts
Get an alert when Harold O. Hilfiker files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →