;  WO2004066481-A2 -- DE19927190-A1   ;  US4953068-A   UNISYS CORP (BURS)   HENZE C P;  US20020141867-A1   ;  US6181235-B1   ULTRA ELECTRONICS LTD (ULTR-Non-standard)   SMITH J A T;  US6227204-B1   IMPLEX HEARING TECHNOLOGY AG (IMPL-Non-standard)   BAUMANN J W,  LEYSIEFFER H,  VOLZ A;  US6301128-B1   DELTA ELECTRONICS INC (DELT-Non-standard)   JANG Y,  JOVANOVIC M M;  WO2000048299-A1   ;  US7579715-B2 -- DE19927087-A1   ;  DE19927190-A1   ;  JP07046864-A   ;  US3617017-A   ;  US4953068-A   UNISYS CORP (BURS)   HENZE C P;  US5709291-A   DAIFUKU CO LTD (DAHF)   NISHINO S,  IWAMA M,  IMANAKA T;  US5798622-A   YASKAWA DENKI KK (YASW)   HIRAI J,  HIRAGA Y,  HIROSE K,  HAMAMOTO H,  NOMURA K;  US6005304-A   DAIMLER-BENZ AG (DAIM)   SEELIG A;  US6032546-A   STONE N (STON-Individual)   STONE N;  US6078198-A   SIEMENS AG (SIEI)   GERKEN H,  FOERSTER R,  HECKER M,  PIRKL R,  HOFFMANN C,  FREUDENBERG H;  US6084368-A   SIEMENS AG (SIEI)   DOEMENS G,  GILCH M;  US20020141867-A1   ;  US6181235-B1   ULTRA ELECTRONICS LTD (ULTR-Non-standard)   SMITH J A T;  US6227204-B1   IMPLEX HEARING TECHNOLOGY AG (IMPL-Non-standard)   BAUMANN J W,  LEYSIEFFER H,  VOLZ A;  US6231013-B1   DAIMLERCHRYSLER AG (DAIM)   JAENKER P;  US6232775-B1   ALPS ELECTRIC CO LTD (ALPS);  INOUE A (INOU-Individual);  MASUMOTO K (MASU-Individual)   NAITO Y,  BITO T,  HATAUCHI T,  MAKINO T,  OUCHI J,  SASAGAWA S,  INOUE A,  MASUMOTO T;  US6301128-B1   DELTA ELECTRONICS INC (DELT-Non-standard)   JANG Y,  JOVANOVIC M M;  US6462432-B1   DAIMLER-BENZ AG (DAIM)   SEELIG A,  SALAMA S,  LINDIG E,  KAUS E;  US6712313-B2   EUROCOPTER (EADS)   ZOPPITELLI E,  CORNILLE E;  US6845941-B2   PICA B D (PICA-Individual)   PICA B D;  US6934167-B2   JANG Y (JANG-Individual);  JOVANOVIC M M (JOVA-Individual)   JANG Y,  JOVANOVIC M M;  US7198223-B2   AIRSCOOTER CORP (AIRS-Non-standard)   PHELPS A E,  NORRIS E G,  ROCK E F,  WALLACE E;  WO2000048299-A1   ;  EP1586153-B1 -- DE19927190-A1   ;  US4953068-A   UNISYS CORP (BURS)   HENZE C P;  US20020141867-A1   ;  US6181235-B1   ULTRA ELECTRONICS LTD (ULTR-Non-standard)   SMITH J A T;  US6227204-B1   IMPLEX HEARING TECHNOLOGY AG (IMPL-Non-standard)   BAUMANN J W,  LEYSIEFFER H,  VOLZ A;  US6301128-B1   DELTA ELECTRONICS INC (DELT-Non-standard)   JANG Y,  JOVANOVIC M M;  WO2000048299-A1