Inventor
John M. Langa
Inventor
Alpine, CA, US
Overview
Patents· 4 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
A01Gprimary
A01GHorticulture31%
Y02ATechnologies for adaptation to climate change23%
B29CShaping or joining of plastics15%
B29LIndexing scheme associated with subclass b29c, relating to particular articles15%
B29DProducing particular articles from plastics or from substances in a plastic state8%
Y10TTechnical subjects covered by former us classification8%
PatentTitleYear
5,591,293'Process for manufacturing drip irrigation systems using plastic lamination/extrusion techniques'19974,880,167'Irrigation hose with linear turbulent flow emitter'19894,541,569'Drip irrigation conduit and method of making the same'19854,474,330'Drip irrigation conduit and method of making the same'1984Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1984–1985Patents assigned to RIS IRRIGATION SYST (2)· patent assignee history
1984–1997Based in Alpine, CA, US· patent location history
1989Patents assigned to HARDIE JAMES IRRIGATION INC (1)· patent assignee history
1997Patents assigned to AGRIFIM IRRIGATION INT NV (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| RIS IRRIGATION SYST | 2 | 1984–1985 |
| AGRIFIM IRRIGATION INT NV | 1 | 1997 |
| HARDIE JAMES IRRIGATION INC | 1 | 1989 |
Locations
| Location | Patents | Span |
|---|---|---|
| Alpine, California, US | 4 | 1984–1997 |