Inventor
Warren E. Claflin
Inventor
Bon Air, VA, US
Overview
Patents· 12 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
A24Cprimary
A24CMachines for making cigars or cigarettes43%
B23KSoldering or unsoldering22%
A24DCigars17%
B26FPerforating9%
D21HPulp compositions4%
Y10TTechnical subjects covered by former us classification4%
PatentTitleYear
5,178,166'Filter cigarette'19935,168,884'Smoking articles using novel paper wrapper'19924,439,663'Method and system for laser perforation of sheet material'19844,410,785'Method and apparatus for perforation of sheet material by laser'19834,391,285'Smoking article'19834,349,719'Apparatus for laser perforation of transported articles'19824,347,855'Method of making smoking articles'19824,236,062'Apparatus for electrical perforation of webs'19804,224,498'Apparatus for perforating articles by laser'19804,224,497'Method for making filter cigarettes using light energy to make perforations in the filter tipping wrap'19804,207,458'Method of electrically perforating a planar web'19804,019,366'Variable parameter smoking machine'1977Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1977–1993Patents assigned to PHILIP MORRIS INC (12)· patent assignee history
1977Based in Chesterfield, VA, US· patent location history
1980–1984Based in Bon Air, VA, US· patent location history
1992–1993Based in Richmond, VA, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| PHILIP MORRIS INC | 12 | 1977–1993 |
Locations
| Location | Patents | Span |
|---|---|---|
| Bon Air, Virginia, US | 9 | 1980–1984 |
| Richmond, Virginia, US | 2 | 1992–1993 |
| Chesterfield, Virginia, US | 1 | 1977 |