Inventor
Werner Engel
Inventor
Leverkusen, DE
Overview
Patents· 7 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B22Dprimary
B22DCasting of metals22%
B66BElevators22%
B23DPlaning11%
B24BMachines, devices, or processes for grinding or polishing11%
B44CProducing decorative effects11%
F16JPistons11%
Y10TTechnical subjects covered by former us classification11%
PatentTitleYear
7,344,004'Method of and apparatus for operating an elevator installation in a commissioning operation mode and an acceptance check mode'20087,172,055'Generating elevator or escalator installation fault log'20074,753,379'Method and apparatus for regulating the length of workpieces'19884,326,907'Method of identifying piston rings'19824,266,373'Apparatus for deburring edges'19814,130,246'Apparatus for the extraction of die-cast parts from the molds of die-casting machines'19784,074,837'Automatically operating casting ladle apparatus'1978Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1978Patents assigned to ENGEL WERNER (2)· patent assignee history
1978Based in Vellmar, DE· patent location history
1981–1988Patents assigned to GOETZE AG (3)· patent assignee history
1981–1988Based in Leverkusen, DE· patent location history
2007–2008Patents assigned to INVENTIO AG (2)· patent assignee history
2007–2008Based in Root, CH· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| GOETZE AG | 3 | 1981–1988 |
| ENGEL WERNERself | 2 | 1978 |
| INVENTIO AG | 2 | 2007–2008 |
Locations
| Location | Patents | Span |
|---|---|---|
| Leverkusen, DE | 3 | 1981–1988 |
| Root, CH | 2 | 2007–2008 |
| Vellmar, DE | 2 | 1978 |