Inventor · disambiguated record
Donald A. Calleson
Also filed as: CALLESON DONALD A
3 granted patents·213 citations·filing 1978–1994
74Inventor score
Top patents by PatentIndex Score
3 records- 0192US5568819ACigarette filterREYNOLDS TOBACCO CO R·Filed 1994·Granted Oct 29, 1996·185 cites·19 claims
- 0268US4171635AApparatus for measuring smoke dilution in a vented-filter cigaretteLIGGETT GROUP INC·Filed 1978·Granted Oct 23, 1979·27 cites·14 claims
- 0325US4185393ADevice for measuring the circumference of a cylindrical rodLIGGETT GROUP INC·Filed 1978·Granted Jan 29, 1980·1 cites·13 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →