Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Highly efficient tobacco smoke filter

Highly efficient tobacco smoke filter

US Patent 5060672 · Granted Oct 29, 1991

Assignee

No assignee recorded.

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Cigarette filter containing alginite2023
Cigarette filter2015
Process for producing tobacco filter to adsorb materials harmful to health, espe1988
Process for producing tobacco filter to adsorb materials harmful to health, espe1988
Process for producing tobacco filter to adsorb materials harmful to health, espe1988
Process for producing tobacco filter to adsorb materials harmful to health, espe1988
Process for producing tobacco filter to adsorb materials harmful to health, espe1988
Process for producing tobacco filter to adsorb materials harmful to health, espe1988
Composition for increasing plant productivity protein nitrogen level and anion u1986
Method for increasing the biological value of manures, dung-waters, organic wast1985
Method for increasing the biological value of manures, dung-waters, organic wast1985
Process for heterogeneous nucleophilic substitution reactions1982