Inventor
Siegfried Beisswenger
Inventor
Preetz, DE
Overview
Patents· 15 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H01Jprimary
H01JElectric discharge tubes or discharge lamps31%
B41CProcesses for the manufacture or reproduction of printing surfaces27%
C23CCoating metallic material12%
B23KSoldering or unsoldering8%
B44BMachines, apparatus or tools for artistic work, e.g. for sculpturing, guilloching, carving, branding, inlaying8%
B41MPrinting, duplicating, marking, or copying processes4%
B41NPrinting plates or foils4%
C03CChemical composition of glasses, glazes or vitreous enamels4%
H04NPictorial communication, e.g. television4%
PatentTitleYear
7,031,027'Method and apparatus for setting the idle distance of an engraving stylus from the cylinder surface of a rotogravure printing cylinder'20066,877,423'Method to produce a printing form for rotogravure, printing form for rotogravure and their use'20056,741,369'Method for the operating an engraving member'20045,597,609'Process and apparatus for the continuous or semi-continuous coating of eyeglass lenses'19975,286,360'Apparatus for coating a substrate, especially with electrically nonconductive coatings'19945,266,117'Apparatus for the evaporative coating of substrates'19935,102,523'Arrangement for the production of a plasma'19924,549,067'Method for checking printing form surfaces engraved by means of an electron beam'19854,546,232'Method for the topically precise subsequent engraving of printing cylinders'19854,500,791'High stability electron beam generator for processing material'19854,471,205'Electron beam engraving method and device for execution'19844,467,205'Highly-steady beam generating for charged particles'19844,393,295'Apparatus and method for engraving with an electron beam'19834,317,982'Orifice for coupling an electron beam gun to print form cylinders'19824,245,159'Quick-acting electron-optical lenses'1981Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1981–1985Patents assigned to HELL RUDOLF DR ING GMBH (6)· patent assignee history
1981–2006Based in Preetz, DE· patent location history
1983–1985Patents assigned to HELL RUDOLF ING GMBH (2)· patent assignee history
1992–1997Patents assigned to LEYBOLD AG (4)· patent assignee history
1992–1997Based in Alzenau, DE· patent location history
1993Based in Alzenau-Wasserlos, DE· patent location history
2004–2006Patents assigned to HELL GRAVURE SYSTEMS GMBH (3)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HELL RUDOLF DR ING GMBH | 6 | 1981–1985 |
| LEYBOLD AG | 4 | 1992–1997 |
| HELL GRAVURE SYSTEMS GMBH | 3 | 2004–2006 |
| HELL RUDOLF ING GMBH | 2 | 1983–1985 |
Locations
| Location | Patents | Span |
|---|---|---|
| Preetz, DE | 11 | 1981–2006 |
| Alzenau, DE | 3 | 1992–1997 |
| Alzenau-Wasserlos, DE | 1 | 1993 |