Maerz Ofenbau AG
Patent Owner
Stats
- 6 US PATENTS IN FORCE
- 1 US APPLICATIONS PENDING
- Mar 20, 2018 most recent publication
Details
- 6 Issued Patents
- 0 Issued in last 3 years
- 0 Published in last 3 years
- 69 Total Citation Count
- Sep 25, 1979 Earliest Filing
- 10 Expired/Abandoned/Withdrawn Patents
Patent Activity in the Last 10 Years
Technologies
Intl Class
Technology
Matters
Rank in Class
Top Patents (by citation)
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Recent Publications
Publication #
Title
Filing Date
Pub Date
Intl Class
Recent Patents
Patent #
Title
Filing Date
Issue Date
Intl Class
9011143 Parallel flow regenerative lime kiln and method for the operation thereofSep 15, 10Apr 21, 15[C04B, F27B, F27D]
Expired/Abandoned/Withdrawn Patents
Patent #
Title
Status
Filing Date
Issue/Pub Date
Intl Class
4810190 Method and apparatus calcining mineral raw materials utilizing solid fuelExpiredOct 13, 81Mar 07, 89[F27D]
4482280 Feeding apparatus for uniflow regenerative shaft furnaces for calcining limestone and similar mineral materialsExpiredJan 21, 82Nov 13, 84[F27B]
4480991 Process of and apparatus for operating a shaft furnaceExpiredDec 17, 82Nov 06, 84[F27B, F27D, F23Q]
4392821 Calcining furnace with gas-permeable wall structureExpiredOct 05, 81Jul 12, 83[F23M, F27B, F27D]
4382779 Regenerative shaft furnace for burning carbonate-containing raw materialsExpiredDec 17, 80May 10, 83[C01B, F27D, C01F]
4315735 Process for calcining mineral raw materials in a uniflow regenerative shaft furnaceExpiredOct 22, 79Feb 16, 82[C22B, F27D, C01F]
4289482 Fuel lance structure for a uniflow regenerative shaft furnaceExpiredSep 25, 79Sep 15, 81[F27B, F27D]
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