Frayer; James A.

Patent Applications and Registrations

Patent applications and USPTO patent grants for Frayer; James A..The latest application filed is for "multistage residual oil hydrodesulfurization process employing segmented feed addition and product removal".

Company Profile

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Frayer; James A. - Pittsburgh PA
Frayer; James A. - Indiana PA
Frayer; James A. - Indiana Township Pittsburgh

*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
Multistage residual oil hydrodesulfurization process employing segmented feed addition and product removal Grant 4,173,528 - Frayer , et al. November 6, 1	1979-11-06
Hydrodesulfurization catalyst Grant 4,133,777 - Frayer , et al. January 9, 1	1979-01-09
Multi-stage hydrodesulfurization utilizing a second stage catalyst promoted with a group IV-B metal Grant 3,968,027 - Frayer , et al. July 6, 1	1976-07-06
Process for onstream regeneration of a hydrodesulfurization catalyst Grant 3,968,028 - Frayer , et al. July 6, 1	1976-07-06
Desulfurization process employing multi-catalyst reactor Grant 3,968,029 - Frayer , et al. July 6, 1	1976-07-06
Hydrodesulfurization process with parallel first stages in series with a unified second stage Grant 3,968,026 - Frayer , et al. July 6, 1	1976-07-06
Multiple stage hydrodesulfurization with greater sulfur and metal removal in initial stage Grant 3,876,530 - Frayer , et al. April 8, 1	1975-04-08
Two-stage Residual Oil Hydrodesulfurication Process With Ammonia Addition Grant 3,860,511 - Brunn , et al. January 14, 1	1975-01-14
Removal Of Sulfur From Residual Oil With Downstream Ammonia Addition Grant 3,859,203 - Brunn , et al. January 7, 1	1975-01-07

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