van Turnhout; Jan

Patent Applications and Registrations

Patent applications and USPTO patent grants for van Turnhout; Jan.The latest application filed is for "apparatus for manufacturing an electret filter medium".

Company Profile

0.9.0

van Turnhout; Jan - Pijnacker NL
van Turnhout; Jan - Delft NL
van Turnhout; Jan - Pynacker NL

*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
Apparatus for manufacturing an electret filter medium Grant 4,749,348 - Klaase , et al. June 7, 1	1988-06-07
Method for the manufacture of an electret fibrous filter Grant RE32,171 - van Turnhout June 3, 1	1986-06-03
Method for manufacturing an electret filter medium Grant 4,588,537 - Klaase , et al. May 13, 1	1986-05-13
Particulate-modified electret fibers Grant 4,456,648 - Adamse , et al. June 26, 1	1984-06-26
Method for manufacturing a filter of electrically charged electret fiber material and electret filters obtained according to said method Grant RE31,285 - van Turnhout , et al. June 21, 1	1983-06-21
Method for the manufacture of an electret fibrous filter Grant RE30,782 - van Turnhout October 27, 1	1981-10-27
Method for manufacturing a filter of electrically charged electret fiber material and electret filters obtained according to said method Grant 4,178,157 - van Turnhout , et al. December 11, 1	1979-12-11
Electret transducer Grant 4,016,375 - Van Turnhout April 5, 1	1977-04-05
Method for the manufacture of an electret fibrous filter Grant 3,998,916 - van Turnhout December 21, 1	1976-12-21

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