Kankkunen; Heikki
Patent Applications and Registrations
Patent applications and USPTO patent grants for Kankkunen; Heikki.The latest application filed is for "method for manufacturing prefabricated concrete products".
- Kankkunen; Heikki - Vantaa FI
| Patent | Date |
|---|---|
| Method for manufacturing prefabricated concrete products App 20200254647 - Kind Code | 2020-08-13 |
| Method and facility for cutting concrete product Grant 10,022,892 - Kankkunen July 17, 2 | 2018-07-17 |
| Method And Facility For Cutting Concrete Product App 20150298350 - KANKKUNEN; Heikki | 2015-10-22 |
| Method and plant for manufacturing prestressed concrete products Grant 6,841,110 - Seppanen , et al. January 11, 2 | 2005-01-11 |
| Method and plant for manufacturing prestressed concrete products App 20030057597 - Seppanen, Aimo ; et al. | 2003-03-27 |
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