Parallel-Flow Regenerative Shaft Kiln And Method For Calcining Carbonate Rock - EP4182281

The patent EP4182281 was granted to Maerz Ofenbau on Jun 12, 2024. The application was originally filed on Jul 7, 2021 under application number EP21748796A. The patent is currently recorded with a legal status of "Granted And Under Opposition".

EP4182281

MAERZ OFENBAU
Application Number
EP21748796A
Filing Date
Jul 7, 2021
Status
Granted And Under Opposition
May 10, 2024
Grant Date
Jun 12, 2024
External Links
Slate, Register, Google Patents

Patent Summary

Patent Family

Patent Family

Patent Oppositions

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 DateRepresentativeOpposition Status

Get instant alerts for new oppositions and patent status changes

LHOIST RECHERCHE ET DEVELOPPEMENTMar 11, 2025CALYSTAADMISSIBLE

Patent Citations (6) New

Patent citations refer to prior patents cited during different phases such as opposition or international search.

Citation PhasePublication NumberPublication Link
DESCRIPTIONWO2011072894
INTERNATIONAL-SEARCH-REPORTRU2724835
OPPOSITIONAT390248B
OPPOSITIONFR2436346
OPPOSITIONFR2492076
OPPOSITIONWO2022017796

Non-Patent Literature (NPL) Citations (16) New

NPL citations refer to non-patent references such as research papers, articles, or other publications cited during examination or opposition phases.

Citation PhaseReference TextLink
OPPOSITION- Anonymous, "KAESER Blowers - The world-renowned compressor and blower manufacturer", Brochure KAESER, (20220101), pages 1 - 32, XP093267108-
OPPOSITION- Anonymous, "Lime Kiln ID Fan Upgrade Project", Airstream inc, (20200715), pages 1 - 1, Airstream inc, URL: https://www.airstreaminc.ca/airstream-lime-kiln-id-fan-upgrade-east-coast/, (20250404), XP093267083-
OPPOSITION- Anonymous, "Maerz news Lime for the Peruvian Copper Industry ", Maerz, (20120601), pages 1 - 11, XP093267089-
OPPOSITION- Anonymous, "New turbo blowers for pressure boosts up to 1.4 bar", ZKG International, (20190101), pages 18 - 18, ZKG International, URL: https://www.zkg.de/en/artikel/zkg_New_turbo_blowers_for_pressure_boosts_up_to_1.4_bar-3421510.html, (20250404), XP093267084-
OPPOSITION- Anonymous, "ROBUSCHI - Case History Screw compressor versus Lobe PD blower", ROBUSCHI - Pumps. blowers & compressors, (20130701), pages 1 - 7, XP093267094-
OPPOSITION- Anonymous, "The Maerz® parallel Flow Regenerative Lime Kiln", Maerz Ofenbau AG, CH, CH, (20020101), pages 1 - 20, XP055603108-
OPPOSITION- Anonymous, "Ventilateurs "heavy-duty"", Marelli, (20250113), pages 1 - 2, Marelli, URL: https://web.archive.org/web/20250113005511/https://marelli.be/modele/ventilateurs-heavy-duty/, (20250404), XP093267092-
OPPOSITION- D15 - Capture d’écran du site de la société KSB daté du 30 avril 2016-
OPPOSITION- D20 - arte de visite de Mr Nelissen, remise en même temps que la brochure commerciale pour le compresseur ROBOX-
OPPOSITION- D6a - Capture d’écran pour prevue de la date de publication de D6-
OPPOSITION- Drymix , "Increased efficiency thanks to modern fan technology", ZKG Inernational, (20121201), pages 17 - 21, ZKG Inernational, URL: https://www.zkg.de/en/artikel/zkg_Increased_efficiency_thanks_to_modern_fan_technology-1565075.html, (20250404), XP093267080-
OPPOSITION- Hurll Nu-Way Pty Ltd , "Screw blower or turbo blower?", SM - Sustainability Matters, (20150327), pages 1 - 3, SM - Sustainability Matters , URL: https://www.sustainabilitymatters.net.au/content/energy/article/screw-blower-or-turbo-blower--968612195, (20250404), XP093267103-
OPPOSITION- PIRINGER H, "Brenngase mit geringem Heizwert für die Beheizung von gleichstrom Regenerativ-Kalkschachtöfen", ZKG International - Zement - Kalk - Gips International, DE , (20030101), vol. 56, no. 6, ISSN 0949-0205, pages 66 - 72, XP002502283-
OPPOSITION- Raetts, "Wastewater Treatment Plant Air Blower Solution, Turbo Blower Manufacturer - RAETTS", Youtube, (20190725), Youtube, URL: https://www.youtube.com/watch?v=8zI0OhiAfVk, (20250404), XP093267087-
OPPOSITION- Fujii Tomihiko , Tomoyuki Hamada, Kotaro Maeda, Hiroyuki Shigemura, Hiromasa Yamashita, "Method of considering reduction of power consumption of entire treatment plant based on power consumption characteristics of sewerage facilities", Journal of Japan Society of Civil Engineers, (20170519), vol. 73, no. 7, doi:10.2208/jscejer.73.III_449, ISSN 2185-6648, pages III_449 - III_456, XP093267076
OPPOSITION- Suzuki Yasuyoshi, "Replacement of Existing Fans with High-Efficiency Fans for Energy Saving", Japan Tappi journal, (19991101), vol. 53, no. 11, doi:10.2524/jtappij.53.1417, pages 1417 - 1422, XP093267079

Download Citation Report

Get a free citation report including examiner, opposition, and international search citations.

Get Citation Report

Dossier Documents

The dossier documents provide a comprehensive record of the patent’s prosecution history - including filings, correspondence, and decisions made by patent offices - and are crucial for understanding the patent’s legal journey and any challenges it may have faced during examination.

  • Date

    Description

  • Get instant alerts for new documents