Inventor
Rolf Dahlgrun
Inventor
Schwarzenbek, DE
Overview
Patents· 11 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
A24Cprimary
A24CMachines for making cigars or cigarettes65%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests12%
B23KSoldering or unsoldering6%
B65GTransport or storage devices, e.g. conveyors for loading or tipping, shop conveyor systems or pneumatic tube conveyors6%
G01NInvestigating or analysing materials by determining their chemical or physical properties6%
G07CTime or attendance registers6%
PatentTitleYear
6,247,577'Apparatus for changing the direction of transport of oval cigarettes'20015,632,285'Apparatus for making filter tipped smokers\' products having a non-circular cross-sectional outline'19975,322,157'Apparatus for transferring and changing the direction of transport of rod-shaped articles'19944,403,619'Method and apparatus for influencing the permeability of wrappers of filter cigarettes or the like'19834,287,754'Apparatus for and method of multiple testing of wrappers of cigarettes or the like'19814,282,889'Method and apparatus for influencing the permeability of wrappers of filter cigarettes or the like'19814,280,187'Method and apparatus for pinpointing the causes of malfunction of machines for the manufacture and/or processing of cigarettes or the like'19814,193,409'Method and apparatus for regulating the permeability of wrapping material for rod-shaped smokers\' products'19804,177,670'Method and apparatus for multiple testing of wrappers of cigarettes for porosity'19794,154,090'Process and apparatus for multiple testing of wrappers of cigarettes or the like'19794,009,722'Method and machine for making cigarettes with composite fillers'1977Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1977–1983Patents assigned to HAUNI WERKE KOERBER & CO KG (8)· patent assignee history
1977Based in Tornesch, DE· patent location history
1979–1981Based in Schwarzenbek, DE· patent location history
1981–1983Based in La Celle Saint Cloud, FR· patent location history
1994–2001Patents assigned to DECOUFLE SARL (3)· patent assignee history
1994–2001Based in Chaville, FR· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HAUNI WERKE KOERBER & CO KG | 8 | 1977–1983 |
| DECOUFLE SARL | 3 | 1994–2001 |
Locations
| Location | Patents | Span |
|---|---|---|
| Schwarzenbek, DE | 5 | 1979–1981 |
| Chaville, FR | 3 | 1994–2001 |
| La Celle Saint Cloud, FR | 2 | 1981–1983 |
| Tornesch, DE | 1 | 1977 |