Method And System For Production Of A Clean Hot Gas Based On Solid Fuels

Patent No. EP2334762 (titled "Method And System For Production Of A Clean Hot Gas Based On Solid Fuels") was filed by Dall Energy APS on Aug 28, 2009. The application was issued on Oct 10, 2018.

Patent Summary

A thermal reactor for converting solid fuels into clean flue gas and ash, comprising a stage-divided reactor with separate vertical stages for ash burn-out, char oxidation and gasification, pyrolysis, drying, and gas combustion. The reactor uses an updraft gasification principle, where fuel is fed into the top and converted into a burnable gas in successive stages, with the gas combustion stage providing heat for drying and pyrolysis. The reactor achieves low NOx emissions, low particulate matter, and low carbon content in the ash through its staged design and optimized operating conditions.

UPC Cases New

Latest UPC cases involving this patent.

Case NumberFiling DatePlaintiffProceeding Type
UPC_COA_0000057/2026Apr 20, 2026Polytechnik Luft UND FeuerungstechnikAppeal
UPC_CFI_513/2025Jun 11, 2025Dall EnergyInfringement

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Patent oppositions filed by competitors challenge the validity of a granted patent. These oppositions are typically based on claims of prior art, lack of novelty, or non-obviousness. They are a key part of the process for determining a patent's strength and enforceability.

CompanyOpposition DateRepresentative
OBERNBERGERJul 10, 2019KUHNEN & WACKER PATENT UND RECHTSANWALTSBURO PARTG MBB

Dossier Documents

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EP2334762

DALL ENERGY APS
Application Number
EP09776275A
Filing Date
Aug 28, 2009
Status
Opposition Rejected
Jul 5, 2024
Publication Date
Oct 10, 2018