Extract from the Register of European Patents

EP About this file: EP4267802

EP4267802 - SUBTERRANEAN PLACEMENT OF LIGNOCELLULOSIC MATERIALS [Right-click to bookmark this link]
StatusThe patent has been granted
Status updated on  20.06.2025
Database last updated on 19.03.2026
FormerGrant of patent is intended
Status updated on  06.03.2025
FormerRequest for examination was made
Status updated on  29.09.2023
FormerThe international publication has been made
Status updated on  26.08.2022
Most recent event   Tooltip06.02.2026Lapse of the patent in a contracting state
New state(s): RS
published on 11.03.2026  [2026/11]
Applicant(s)For all designated states
Allen, III, Laurence E.
50 Marine Dr.
San Rafael, California 94901 / US
For all designated states
Allen, IV, Laurence E.
50 Marine Dr.
San Rafael, California 94901 / US
[2023/44]
Inventor(s)01 / see applicant
...
 [2023/44]
Representative(s)Yang, Shu
Withers & Rogers LLP
2 London Bridge
London SE1 9RA / GB
[2025/30]
Former [2023/44]Jaeger, Michael David
Withers & Rogers LLP
2 London Bridge
London SE1 9RA / GB
Application number, filing date22756790.615.02.2022
[2023/44]
WO2022US16493
Priority number, dateUS20211717619216.02.2021         Original published format: US202117176192
[2023/44]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO2022177920
Date:25.08.2022
Language:EN
[2022/34]
Type: A1 Application with search report 
No.:EP4267802
Date:01.11.2023
Language:EN
The application published by WIPO in one of the EPO official languages on 25.08.2022 takes the place of the publication of the European patent application.
[2023/44]
Type: B1 Patent specification 
No.:EP4267802
Date:23.07.2025
Language:EN
[2025/30]
Search report(s)International search report - published on:US25.08.2022
(Supplementary) European search report - dispatched on:EP10.06.2024
ClassificationIPC:E02D3/12, E02D35/00
[2024/28]
CPC:
E02D3/12 (EP); E02D35/00 (EP)
Former IPC [2023/44]E02D3/00, E02D35/00
Designated contracting statesAL,   AT,   BE,   BG,   CH,   CY,   CZ,   DE,   DK,   EE,   ES,   FI,   FR,   GB,   GR,   HR,   HU,   IE,   IS,   IT,   LI,   LT,   LU,   LV,   MC,   MK,   MT,   NL,   NO,   PL,   PT,   RO,   RS,   SE,   SI,   SK,   SM,   TR [2023/44]  
Extension statesBANot yet paid
MENot yet paid
Validation statesKHNot yet paid
MANot yet paid
MDNot yet paid
TNNot yet paid
TitleGerman:UNTERIRDISCHE PLATZIERUNG VON LIGNOCELLULOSEMATERIALIEN[2023/44]
English:SUBTERRANEAN PLACEMENT OF LIGNOCELLULOSIC MATERIALS[2023/44]
French:MISE EN PLACE SOUTERRAINE DE MATIÈRES LIGNOCELLULOSIQUES[2023/44]
Entry into regional phase25.07.2023National basic fee paid 
25.07.2023Search fee paid 
25.07.2023Designation fee(s) paid 
25.07.2023Examination fee paid 
Examination procedure25.07.2023Examination requested  [2023/44]
19.12.2024Amendment by applicant (claims and/or description)
19.12.2024Date on which the examining division has become responsible
07.03.2025Communication of intention to grant the patent
12.06.2025Fee for grant paid
12.06.2025Fee for publishing/printing paid
12.06.2025Receipt of the translation of the claim(s)
Divisional application(s)EP25190699.6  / EP4644611
Fees paidRenewal fee
16.02.2024Renewal fee patent year 03
13.02.2025Renewal fee patent year 04
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Lapses during opposition  TooltipHR23.07.2025
NO23.10.2025
RS23.10.2025
IS23.11.2025
[2026/11]
Former [2026/09]HR23.07.2025
NO23.10.2025
IS23.11.2025
Former [2026/07]IS23.11.2025
Documents cited:Search[A] DE19521639  (BILFINGER BERGER BAU et al.) [A] 1-20 * the whole document *
 [A] WO2018001833  (THUR SRL et al.) [A] 1,8,13 * claim 1 *
 [AD] JP2012092648  (TAISEI CORP et al.) [AD] 1-20 * paragraphs [0022] , [0023]; figures 1,5 *
 [A] US2627169  (POULTER JOHN W et al.) [A] 1-20 * the whole document *
International search[A] US2009155002  (HAKKINEN SAMI et al.) [A] 1-20 * ; the entire document, and more specifically: para [0001], [0010], [0012], [0027], [0053]; figures 1-2; abstract *
 [A] US2015275454  (KRUSE DARIN R et al.) [A] 1-20 * ; the entire document, and more specifically: para [0007]-[0008], [0055], [0059]. [0072], [0115]; abstract *
 [A] US2019194897  (BIRTELE ANDREA et al.) [A] 1-20 * ; the entire document, and more specifically: para [0056], [0058], [0077]-[0079]; abstract *
 [A] US2005158128  (CANTERI CARLO et al.) [A] 1-20 * ; the entire document *
 [A, P] US2021324258  (ALLEN III LAURENCE E et al.) [A, P] 1-20 * ; the entire document *
 [A]   DEJONG ET AL.: "Bio-mediated soil improvement", ECOLOGICAL ENGINEERING, vol. 36, no. 2, February 2010 (2010-02-01), pages 197 - 210, XP026857142 [A] 1-20 * (the entire document) *

DOI:   http://dx.doi.org/10.1016/j.ecoleng.2008.12.029
by applicantDE19521639
 US2627169
   WILLSON, C.S.: "Assessing the Cost of Coastal Land Creation Using Dredged Material", THE WATER INSTITUTE OF THE GULF, 2015
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