Inventor · disambiguated record
Hibbard G. Keifert
Also filed as: KEIFERT HIBBARD G
7 granted patents·272 citations·filing 1975–1979
88Inventor score
Files withFANSTEEL INC7
Top patents by PatentIndex Score
7 records- 0193US4073427ALined equipment with triclad wall constructionFANSTEEL INC·Filed 1976·Granted Feb 14, 1978·91 cites·16 claims
- 0291US4291104ABrazed corrosion resistant lined equipmentFANSTEEL INC·Filed 1979·Granted Sep 22, 1981·61 cites·9 claims
- 0381US4117201ACorrosion and erosion resistant lined equipmentFANSTEEL INC·Filed 1976·Granted Sep 26, 1978·46 cites·12 claims
- 0471US4030849ALined equipment and method of fabricationFANSTEEL INC·Filed 1976·Granted Jun 21, 1977·31 cites·11 claims
- 0570US4032243AJoint fabrication and method for forming the sameFANSTEEL INC·Filed 1976·Granted Jun 28, 1977·20 cites·21 claims
- 0663US3986243AMethod of repairing chemical process equipmentFANSTEEL INC·Filed 1975·Granted Oct 19, 1976·14 cites·8 claims
- 0739US4030848ALined equipment with dual base metal insertsFANSTEEL INC·Filed 1976·Granted Jun 21, 1977·9 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →