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For the Inventor, By the Inventor

Durham, NC, United States of America

Liggett & Myers, Incorporated

Calculating rank
USPTO Granted Patents = 9

Trademarks = 2

Forward Citations = 83

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10 inventors (with patents filed for the assignee):

goldMedal Floyd V Hall (3 out of 22 patents)

silverMedal William F Cartwright (2 out of 4 patents)

bronzeMedal Richard E Means (2 out of 2 patents)

4.  Andrew G Kallianos (2 out of 5 patents)

5.  Vello Norman (2 out of 8 patents)

6.  Daniel Schoenholz (1 out of 14 patents)

7.  Herbert Terry (1 out of 2 patents)

8.  Herman G Bryant, Jr (1 out of 6 patents)

9.  J Bowen Ross, Jr (1 out of 1 patent)

10.  Ned A Sigmon (1 out of 3 patents)


9 patents:

1. 4088065 - Method and apparatus for making tobacco smoke filter (1978-05-09),
2. 4055191 - Tobacco composition (1977-10-25),
3. 4052993 - Cinnamic derivatives as tobacco additives (1977-10-11),
4. 4034765 - Tobacco smoke filter (1977-07-12),
5. 4024012 - Method and apparatus for making a hollow filter and a filter rod (1977-05-17),
6. 4023576 - Cigarette mouthpiece for controlling flow (1977-05-17),
7. 3976085 - Automatic cigarette feed machine (1976-08-24),
8. 3949107 - Method of polishing floors (1976-04-06),
9. 3943943 - Cinnamic derivatives as tobacco additives (1976-03-16),
Company Overview
Liggett & Myers, Incorporated is a leading tobacco manufacturer in the United States. With a history dating back to the 19th century, the company is known for producing iconic cigarette brands such as L&M, Eve, and Pyramid. In addition to its tobacco products, Liggett & Myers also offers a range of innovative smoking alternatives and nicotine products. Committed to quality and innovation, the company continues to be a trusted name in the tobacco industry.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 27 2026

9 Patents

#82 in Durham, NC

#674 in North Carolina

#32,627 in US

Durham, NC (US)
Durham, NC, United States of America

Liggett & Myers, Incorporated

Forward Citations = 83

10 inventors:

goldMedal Floyd V Hall (3 out of 22 patents)

silverMedal William F Cartwright (2 out of 4 patents)

bronzeMedal Richard E Means (2 out of 2 patents)

4.  Andrew G Kallianos (2 out of 5 patents)

5.  Vello Norman (2 out of 8 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Liggett & Myers, Incorporated. Retrieved from https://idiyas.com/company/liggett-and-myers

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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