Inventor · disambiguated record
Frederick George Schappell
Also filed as: SCHAPPELL FREDERICK G · SCHAPPELL FREDERICK GEORGE
3 granted patents·7 citations·filing 1975–1975
58Inventor score
Technology areasC08K
Files withHERCULES INC3
Top patents by PatentIndex Score
3 records- 0138US3957835ABrominated azido fire retardantsHERCULES INC·Filed 1975·Granted May 18, 1976·4 cites·9 claims
- 0232US3956398ABis-monoperoxyacetals and -ketalsHERCULES INC·Filed 1975·Granted May 11, 1976·3 cites·6 claims
- 0326US4009294AProcess of preparing fire-retardant natural and synthetic fibersHERCULES INC·Filed 1975·Granted Feb 22, 1977·0 cites·21 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →