RankingsPrimerArbiterPhysicistMathematicianContrarianQESites logClaimsSourcesResearch notes

Espacenet and European Patent Register (and Google Patents), 2026-10-09 (Investigator, Step I, run 1)

Sites: https://worldwide.espacenet.com (Chrome), https://register.epo.org (Chrome), https://patents.google.com (Chrome and script).

Queries: Espacenet in="Naudin Jean" and in="Cornille"; pn=US2005057116A1 (bibliographic, legal events); pn=US6362718B1 (legal events); EPO Register smart search EP1389360 (status, event history). Google Patents ?inventor=Naudin&q=Cornille and /patent/WO2002075912A1/en: the page did not render readable text in Chrome and returned a 1 kB stub to curl (recorded as partial/blocked for scripted access).

Cornille-Naudin patent families (claim 6)

Espacenet returns two families for inventors Naudin + Cornille [web] https://worldwide.espacenet.com/patent/search?q=in%3D%22Naudin%20Jean%22%20and%20in%3D%22Cornille%22 :

  1. FR2789818 "Rapid battery charger for batteries, capacitors and high capacity electrostatic batteries": published as A1 and B1 (so the French application went to grant), applicant Advanced Electromagnetic Systems (AES) [FR], earliest priority 1999-02-16, published 2000-08-18. Abstract: an automatic chopper circuit controlled by the charging current, high-speed switch T1 in series with transformer primary L1 whose secondary L2 drives the switch through C2 or an integrator, current-limiting R1.
  2. Electrical power source family (Espacenet family view of US2005057116A1) [web] https://worldwide.espacenet.com/patent/search/family/008861597/publication/US2005057116A1?q=US2005057116A1 : - Priorities: FR0104130A (2001-03-21); PCT FR0200982W (2002-03-20). - Published as: FR2822590A1, FR2822590B1 (French grant), WO02075912A1 (2002-09-26), EP1389360A1, US2005057116A1 (US application 10/472,714, filed 2004-04-01). - Applicants: Cornille Patrick; Naudin Jean-Louis. IPC H02N1/08, H02N11/00; CPC H02N11/002, H02N11/008. - US legal events: assignment of the inventors' interest to "AES, FRANCE" (signed 2003-11-02 to 11-10, recorded 2004-01-02, reel/frame 014848/0489); 2006-06-27 "ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION".

EPO Register, EP1389360 "ELECTRICAL POWER SOURCE" (application EP02753585) [web] https://register.epo.org/application?number=EP02753585&lng=en&tab=event : - Applicant: AES (Saint-Rémy-lès-Chevreuse, FR); inventors Cornille and Naudin. - Request for examination filed 2004-01-02; renewal fees paid 2004-03-17, 2005-02-11, 2006-02-17; 2007-05-01 communication on additional fee for the renewal fee; 2007-10-31 communication that the application is deemed withdrawn; status "The application is deemed to be withdrawn" (2008-02-22, Bulletin 2008/13), i.e. the 2007 renewal fee was not paid. No grant and no decision on the merits appear in the event list read.

How it bears (claim 6, and Absence of evidence): the "efficiency of more than one" family was granted in France (FR B1), but the US application was abandoned after an Office action went unanswered, and the European application lapsed for non-payment in 2007. Competing readings: abandonment for cost; a substantive objection (utility / operability) that the applicants chose not to contest; loss of interest. What would decide it: the US Office action itself (USPTO Patent Center, application 10/472,714, image file wrapper) and the EP search report / written opinion in the EP "All documents" tab and the WO02075912 International Search Report (WIPO Patentscope). The FR B1 text (INPI) would show the claims as granted.

Espacenet legal events [web] https://worldwide.espacenet.com/patent/search/family/024632521/publication/US6362718B1?q=pn%3DUS6362718B1 : - 4th-year fee: reminder 2005-10-12; petition on maintenance fees filed and granted (Dec 2005); "LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE" 2006-05-23 (effective 2006-03-26); reinstated (late fee accepted) 2006-06-19/23. - Assignment, nunc pro tunc, 2006-06-01 from Patrick, Bearden, Hayes and others to "Magenetic Energy, Ltd., Alabama" (corrected 2006-06-08 to Magnetic Energy, Ltd.). - Security agreement 2006-06-12: Magnetic Energy, Ltd. to Colmac Holdings Limited, Canada (reel/frame 017759/0537). - 8th-year fee paid late 2010-03-02 with surcharge; 12th-year fee paid 2013-09-17 (so the patent was kept in force to the end of its term).

How it bears: the owners kept the MEG patent alive for its full term and pledged it as security to a Canadian holding company in 2006, a record of continued commercial interest. Whether any product, licence or test report followed is not in these records; the Colmac Holdings link is a lead for company records (Canada) next run.