<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE ep-patent-document PUBLIC "-//EPO//EP PATENT DOCUMENT 1.4//EN" "ep-patent-document-v1-4.dtd"><ep-patent-document id="EP0358700A1" file="EP88904521NWA1.xml" lang="de" doc-number="0358700" date-publ="19900321" kind="A1" country="EP" status="n" dtd-version="ep-patent-document-v1-4"><SDOBI lang="de"><B000><eptags><B001EP>..BE..DE....FRGB..IT....NL..........................................................................</B001EP><B003EP>*</B003EP><B007EP>EPregister to ST.36 EBD process v 1.0 kbaumeister@epo.org (15 Jan 2013)</B007EP></eptags></B000><B100><B110>0358700</B110><B130>A1</B130><B140><date>19900321</date></B140><B190>EP</B190></B100><B200><B210>88904521.0</B210><B220><date>19880519</date></B220><B240><B241><date>19890916</date></B241></B240><B250>de</B250><B251EP>de</B251EP><B260>de</B260></B200><B300><B310>19873716899</B310><B320><date>19870520</date></B320><B330><ctry>DE</ctry></B330></B300><B400><B405><date>19900321</date><bnum>199012</bnum></B405><B430><date>19900321</date><bnum>199012</bnum></B430></B400><B500><B510EP><classification-ipcr sequence="1"><text>B01D  53/    04            A I                    </text></classification-ipcr><classification-ipcr sequence="2"><text>B01D  53/   047            A I                    </text></classification-ipcr><classification-ipcr sequence="3"><text>C01B  23/    00            A I                    </text></classification-ipcr></B510EP><B540><B541>en</B541><B542>PROCESS FOR EXTRACTION OF HELIUM</B542><B541>fr</B541><B542>PROCEDE D'EXTRACTION D'HELIUM</B542><B541>de</B541><B542>VERFAHREN ZUR HELIUMGEWINNUNG</B542></B540></B500><B700><B710><B711><snm>Bergwerksverband GmbH</snm><adr><str>Franz-Fischer-Weg 61</str><city>D-45307 Essen</city><ctry>DE</ctry></adr></B711></B710><B720><B721><snm>KNOBLAUCH, Karl</snm><adr><str>Semperstr. 55</str><city>D-4300 Essen</city><ctry>DE</ctry></adr></B721><B721><snm>PILARCZYK, Erwin</snm><adr><str>Birkenstr. 63</str><city>D-4250 Bottrop</city><ctry>DE</ctry></adr></B721><B721><snm>GIESSLER, Klaus</snm><adr><str>Schultestr. 41</str><city>D-4650 Gelsenkirchen</city><ctry>DE</ctry></adr></B721><B721><snm>BUKOWSKI, Hans</snm><adr><str>Humboldtstr. 43</str><city>D-4300 Essen</city><ctry>DE</ctry></adr></B721><B721><snm>D'AMICO, Joseph, S.</snm><adr><str>6422 Oak Park Ct.</str><city>Baltimore, MD 21090</city><ctry>US</ctry></adr></B721><B721><snm>REINHOLD, Herbert</snm><adr><str>1100 Crestview Drive</str><city>Annapolis, MD 21041</city><ctry>US</ctry></adr></B721></B720></B700><B800><B840><ctry>BE</ctry><ctry>DE</ctry><ctry>FR</ctry><ctry>GB</ctry><ctry>IT</ctry><ctry>NL</ctry></B840><B860><B861><dnum><anum>EP1988000440</anum></dnum><date>19880519</date></B861><B862>de</B862></B860><B870><B871><dnum><pnum>WO1988009305</pnum></dnum><date>19881201</date><bnum>198826</bnum></B871></B870></B800></SDOBI></ep-patent-document>