{"@context": "https://schema.org", "@type": "BreadcrumbList", "itemListElement": [{"@type": "ListItem", "position": 1, "name": "Home", "item": "https://www.patentleaderboard.com/"}, {"@type": "ListItem", "position": 2, "name": "Variable ventilation mouthpiece for a smoking article", "item": "https://www.patentleaderboard.com/patent/4949736"}]}
Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Variable ventilation mouthpiece for a smoking article

Variable ventilation mouthpiece for a smoking article

US Patent 4949736 · Granted Aug 21, 1990

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Anionic abrasive particles treated with positively charged polyelectrolytes for 2007
Graffiti detection system and method of using the same2006
Sonic detection system and method of using the same2005
Method of polishing or planarizing a substrate2005
Anionic abrasive particles treated with positively charged polyelectrolytes for 2004
Magnetic therapeutic device and method of use2003
Graffiti detection system and method of using the same2003
Graffiti detection system and method of using the same2001
Vehicle tire leak detection system and method of using the same2001
Firearm shot detection system and method of using the same2001
Tobacco treatment process1991
Smoking articles utilizing electrical energy1990