Ulveling; Leon

Patent Applications and Registrations

Patent applications and USPTO patent grants for Ulveling; Leon.The latest application filed is for "device for the injection of pulverized coal into a blast furnace crucible".

Company Profile

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Ulveling; Leon - Luxembourg-Howard LU
Ulveling; Leon - Howald LU

*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
Device for the injection of pulverized coal into a blast furnace crucible Grant 5,451,034 - Ulveling , et al. September 19, 1	1995-09-19
Device for shutting of pipelines for transport of bulk products Grant 5,101,853 - Mailliet , et al. April 7, 1	1992-04-07
Device for shutting of pipeline for the transport of bulk product Grant 5,076,737 - Loutsch , et al. December 31, 1	1991-12-31
Apparatus for the pneumatic injection of pulverulent materials into a pressurized vessel, and its application to the injection of powered coal into a shaft furnace Grant 4,702,288 - Ulveling , et al. October 27, 1	1987-10-27
Apparatus and method for controlling the contents and the filling of a distribution tank for pulverized materials Grant 4,593,727 - Ulveling June 10, 1	1986-06-10
Guide and support structure for furnace taphole plugging or drilling device Grant 4,227,682 - Ulveling , et al. October 14, 1	1980-10-14
Guiding and positioning mechanism for a plugging or drilling device Grant 4,201,373 - Ulveling , et al. May 6, 1	1980-05-06
Compact apparatus for drilling and plugging tap holes Grant 4,195,825 - Ulveling , et al. April 1, 1	1980-04-01

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