Patent assignee · CH · COMPANY

Allper AG

3Patents
1Active
3Granted
34Portfolio score

Filing activity: Feb 9, 1990 → Oct 11, 2006 · 1 expiring within 5 years

Most-cited patents

PatentTitleAreaCited byStatus
US5048592A Plunger for a diecasting machine Performing Operations; Transporting 24 Expired
US5233912A Piston for forcing liquid metal out of a casting cylinder Emerging Cross-Sectional Technologies 21 Expired
US8136574B2 Multi-piece piston for a cold chamber casting machine Performing Operations; Transporting 3 Active

Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.