Inventor · disambiguated record
Alf H. Grennard
Also filed as: GRENNARD ALF H
2 granted patents·35 citations·filing 1976–1978
62Inventor score
Technology areasF17C
Files withGRENNARD ALF H2
Top patents by PatentIndex Score
2 records- 0158US4121429AUnderground storage for cold and hot products and methods for constructing sameGRENNARD ALF H·Filed 1976·Granted Oct 24, 1978·19 cites·16 claims
- 0252US4224800AProcess for safe underground storage of materials and apparatus for storage of such materialsGRENNARD ALF H·Filed 1978·Granted Sep 30, 1980·16 cites·45 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →