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name:-0.0010771751403809
name:-0.0041189193725586
name:-0.0004730224609375
Ohlson; John L. Patent Filings

Ohlson; John L.

Patent Applications and Registrations

Patent applications and USPTO patent grants for Ohlson; John L..The latest application filed is for "polyurethane polymer amine salt as a dyeing aid, particularly for polyolefin fibers".

Company Profile
0.4.0
  • Ohlson; John L. - Bedford MA
*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.
Patent Activity
PatentDate
Polyurethane polymer amine salt as a dyeing aid, particularly for polyolefin fibers
Grant 4,421,826 - Ohlson , et al. December 20, 1
1983-12-20
Process for preparing chelating agents
Grant 4,338,460 - Gaudette , et al. July 6, 1
1982-07-06
N,N'Di(hydroxybenzyl) 1,3-propanediamine N,N'-diacetonitriles
Grant 4,225,502 - Gaudette , et al. September 30, 1
1980-09-30
Iron Chelates Useful For Supplying Iron To Plants Growing In Calcareous Soil
Grant 3,742,002 - Ohlson , et al. June 26, 1
1973-06-26

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