Inventor · disambiguated record
John M. Langa
Also filed as: LANGA JOHN M
4 granted patents·169 citations·filing 1981–1994
81Inventor score
Top patents by PatentIndex Score
4 records- 0190US4880167AIrrigation hose with linear turbulent flow emitterHARDIE JAMES IRRIGATION INC·Filed 1988·Granted Nov 14, 1989·75 cites·10 claims
- 0280US5591293AProcess for manufacturing drip irrigation systems using plastic lamination/extrusion techniquesAGRIFIM IRRIGATION INT NV·Filed 1994·Granted Jan 7, 1997·52 cites·12 claims
- 0370US4474330ADrip irrigation conduit and method of making the sameRIS IRRIGATION SYST·Filed 1981·Granted Oct 2, 1984·27 cites·27 claims
- 0453US4541569ADrip irrigation conduit and method of making the sameRIS IRRIGATION SYST·Filed 1984·Granted Sep 17, 1985·15 cites·14 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →