loadpatents
name:-0.0004279613494873
name:-0.009943962097168
name:-0.00058197975158691
Fleck; Fritz Patent Filings

Fleck; Fritz

Patent Applications and Registrations

Patent applications and USPTO patent grants for Fleck; Fritz.The latest application filed is for "improved optical brightening of polyamides".

Company Profile
0.7.0
  • Fleck; Fritz - Bottmingen CH
*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
Improved optical brightening of polyamides
Grant 4,169,702 - Fleck , et al. October 2, 1
1979-10-02
Divinyl stilbenes as optical brighteners
Grant 4,108,887 - Fleck , et al. August 22, 1
1978-08-22
Bis-(triazinylamino) stilbene compounds
Grant 4,025,507 - Fleck , et al. May 24, 1
1977-05-24
Fluorescent 1,2,3-triazole derivatives of 3-phenylcoumarin
Grant 4,006,158 - Fleck , et al. February 1, 1
1977-02-01
Monobenzoxazolylstilbenes
Grant 3,996,210 - Fleck , et al. December 7, 1
1976-12-07
Triazole-bis(benzoxazole) optical brighteners
Grant 3,926,969 - Fleck , et al. December 16, 1
1975-12-16
Organic compounds
Grant 3,897,421 - Aebli , et al. July 29, 1
1975-07-29

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