Didier Engineering GmbH
Patent Owner
Stats
- 0 US PATENTS IN FORCE
- 0 US APPLICATIONS PENDING
- Jul 07, 1992 most recent publication
Details
- 0 Issued Patents
- 0 Issued in last 3 years
- 0 Published in last 3 years
- 855 Total Citation Count
- Apr 21, 1977 Earliest Filing
- 82 Expired/Abandoned/Withdrawn Patents
Patent Activity in the Last 10 Years
Technologies
- No Technology to Display
Top Patents (by citation)
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Recent Publications
- No Recent Publications to Display
Recent Patents
- No Recent Patents to Display
Expired/Abandoned/Withdrawn Patents
Patent #
Title
Status
Filing Date
Issue/Pub Date
Intl Class
5128021 Pitch from coal tar pitch, method of its production, as well as application of such pitch materialExpiredAug 03, 89Jul 07, 92[C10G, C10C]
4935392 Process for the manufacture of catalyst members for the reduction of oxides of nitrogen and catalyst members produced therebyExpiredMar 29, 89Jun 19, 90[B01J]
4914073 Process for the manufacture of catalytic elements and catalytic elements so producedExpiredAug 12, 88Apr 03, 90[B01J]
4895821 Process for the manufacture of catalytic elements and catalytic elements so producedExpiredAug 12, 88Jan 23, 90[B01J]
4771026 Catalyst in the form of a plate for nitrogen oxide reduction in exhaust gasesExpiredSep 01, 87Sep 13, 88[B01J]
4751212 Process for the manufacture of a catalyst for the reduction of nitrogen oxides in exhaust gasesExpiredDec 05, 86Jun 14, 88[C01B, B01J]
4721699 Catalyst for the separation of nitrogen oxides from combustion exhaust gasesExpiredAug 27, 86Jan 26, 88[B01J]
4720376 Process for the removal of nitrogen oxides and soot from exhaust gases of machines and combustion installations burning heavy fuel oilExpiredMay 06, 86Jan 19, 88[B01J]
4695559 Catalyst for the selective reduction of nitrogen oxides in waste gases and process for the manufacture of such a catalystExpiredFeb 19, 86Sep 22, 87[B01J]
4629417 Process and furnace for reheating slabs, billets, blooms and the likeExpiredOct 09, 85Dec 16, 86[F23M, F27B, F26B, F27D]
4629418 Process and furnace for reheating metallic objectsExpiredOct 09, 85Dec 16, 86[F27B, F27D, C21B]
4539016 Method of and apparatus for adjusting and maintaining constant the temperature during methanizing of a charge gasExpiredApr 24, 81Sep 03, 85[C10K]
Top Inventors for This Owner
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