Helland; Randall H.

Patent Applications and Registrations

Patent applications and USPTO patent grants for Helland; Randall H..The latest application filed is for "method of marking pavement with sheet comprising ceramic fibers".

Company Profile

0.8.3

Helland; Randall H. - Maplewood MN
Helland, Randall H. - Lake Elmo MN
Helland; Randall H. - Richfield MN

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Pavement marking composition comprising ceramic fibers Grant 7,169,831 - Helland , et al. January 30, 2	2007-01-30
Method Of Marking Pavement With Sheet Comprising Ceramic Fibers App 20060111468 - Helland; Randall H. ; et al.	2006-05-25
Pavement marking composition comprising ceramic fibers App 20030099512 - Helland, Randall H. ; et al.	2003-05-29
Pavement markings comprising synthetic polymeric fibers App 20030069358 - Helland, Randall H. ; et al.	2003-04-10
Stabilized thermal-dye-bleach constructions Grant 5,395,747 - Helland , et al. March 7, 1	1995-03-07
Dihydroperimidine squarylium dyes as antihalation and acutance materials for photographic and photothermographic articles Grant 5,380,635 - Gomez , et al. January 10, 1	1995-01-10
Thermal-dye-bleach construction comprising a polymethine dye and a thermal carbanion-generating agent Grant 5,314,795 - Helland , et al. May 24, 1	1994-05-24
Photographic element containing a thermal dye bleach system Grant 5,266,452 - Kitchin , et al. November 30, 1	1993-11-30
Thermal dye bleach construction sensitive to ultraviolet radiation Grant 5,258,274 - Helland , et al. November 2, 1	1993-11-02
Thermal dye bleach construction Grant 5,135,842 - Kitchin , et al. August 4, 1	1992-08-04
Fluorinated carbon-containing developer composition Grant 4,681,830 - Helland , et al. July 21, 1	1987-07-21

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