Liggett Group Inc.
36Patents
0Active
36Granted
35Portfolio score
Filing activity: Mar 1, 1976 → Jun 30, 1982
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4174720A | Glue transfer apparatus for cigarette filters | Human Necessities | 48 | Expired |
| US4425107A | Rotatable dispensing wheel | Human Necessities | 32 | Expired |
| US4361156A | Method and applicator for applying glue to a travelling stream of tipping paper | Textiles; Paper | 32 | Expired |
| US4208956A | Glue transfer apparatus for cigarette filters | Human Necessities | 29 | Expired |
| US4252527A | Glue transfer apparatus for cigarette filters | Human Necessities | 28 | Expired |
| US4411640A | Apparatus for the production of cigarette filter tips having multi-sectional construction | Human Necessities | 27 | Expired |
| US4248251A | Tobacco composition | Human Necessities | 27 | Expired |
| US4332823A | Fabricated meat and meat by-products and process | Emerging Cross-Sectional Technologies | 25 | Expired |
| US4184412A | Pocket-type charcoal filter and cigarette made therewith | Human Necessities | 23 | Expired |
| US4179323A | Method for making a hollow filter rod | Emerging Cross-Sectional Technologies | 22 | Expired |
| US4434805A | Applicator for applying glue to a travelling stream of tipping paper | Textiles; Paper | 20 | Expired |
| US4063633A | Vacuum plug feed machine | Human Necessities | 19 | Expired |
| US4232574A | Apparatus and method for providing a cigarette filter with an aeration groove | Emerging Cross-Sectional Technologies | 17 | Expired |
| US4177822A | Tobacco composition | Human Necessities | 16 | Expired |
| US4257430A | Tobacco composition including palladium | Human Necessities | 16 | Expired |
| US4090424A | Apparatus for cutting filter plugs from a moving filter rod stream | Emerging Cross-Sectional Technologies | 16 | Expired |
| US4371558A | Semi-moist dog food preparation | Emerging Cross-Sectional Technologies | 13 | Expired |
| US4149545A | Cigarette making and packing system | Human Necessities | 11 | Expired |
| US4369796A | Method and apparatus for forming an air dilution filter | Emerging Cross-Sectional Technologies | 10 | Expired |
| US4109666A | Cigarette filter | Human Necessities | 10 | Expired |
| US4216784A | Tobacco composition | Human Necessities | 10 | Expired |
| US4219030A | Aeration groove filter | Human Necessities | 9 | Expired |
| US4235251A | Stability of tobacco casing systems containing palladium | Human Necessities | 8 | Expired |
| US4091823A | Cyclogeraniol and derivatives thereof as tobacco flavorants | Chemistry; Metallurgy | 8 | Expired |
| US4171635A | Apparatus for measuring smoke dilution in a vented-filter cigarette | Human Necessities | 8 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.