;  WO2005099825-A1 -- DE10007865-A1   FELCH F (FELC-Individual);  DE19728319-A1   AFFELD K (AFFE-Individual)   AFFELD K;  DE19729965-A1   ;  US4208592-A   LEIBOW B (LEIB-Individual)   LEIBOW B,  LEIBOW I;  US4678922-A   LEININGER J J (LEIN-Individual)   LEININGER J J;  US4688025-A   ;  US4821767-A   JACKSON P J (JACK-Individual)   JACKSON P J;  US5016627-A   AUERGESELLSCHAFT GMBH (AUER)   DAHRENDORF K D,  KLING P,  KRIEMS U;  US5781118-A   MINE SAFETY APPLIANCES CO (MINJ)   WISE L A,  FRANK P A;  US5801454-A   LEININGER J J (LEIN-Individual)   LEININGER J J;  US6198396-B1   MINE SAFETY APPLIANCES CO (MINJ)   FRANK P A;  US6486473-B2   MINE SAFETY APPLIANCES CO (MINJ)   SALAPOW T M,  DEMYAN D C,  HENDRICKSON J A,  BECKER M F,  BREWER A J,  COLBURN E R,  ZEDER R;  US7218009-B2 -- DE10007865-A1   FELCH F (FELC-Individual);  DE19728319-A1   AFFELD K (AFFE-Individual)   AFFELD K;  DE19729965-A1   ;  US4208592-A   LEIBOW B (LEIB-Individual)   LEIBOW B,  LEIBOW I;  US4453537-A   SPITZER D E (SPIT-Individual)   SPITZER D E;  US4511806-A   ;  US4678922-A   LEININGER J J (LEIN-Individual)   LEININGER J J;  US4688025-A   ;  US4731545-A   DESAI & LERNER (DESA-Non-standard)   LERNER H,  DESAI B J,  DESAI S B;  US4821767-A   JACKSON P J (JACK-Individual)   JACKSON P J;  US5016627-A   AUERGESELLSCHAFT GMBH (AUER)   DAHRENDORF K D,  KLING P,  KRIEMS U;  US5553454-A   MORTNER S E (MORT-Individual)   MORTNER S E;  US5781118-A   MINE SAFETY APPLIANCES CO (MINJ)   WISE L A,  FRANK P A;  US5801454-A   LEININGER J J (LEIN-Individual)   LEININGER J J;  US5969429-A   US SEC OF NAVY (USNA)   RUDOLPH J,  PRICE K,  HUGHES R;  US6107692-A   WHITAKER CORP (WHTR)   FOLK K F,  LAUB M F,  EGRI R G;  US6198396-B1   MINE SAFETY APPLIANCES CO (MINJ)   FRANK P A;  US6784559-B1   ;  US6486473-B2   MINE SAFETY APPLIANCES CO (MINJ)   SALAPOW T M,  DEMYAN D C,  HENDRICKSON J A,  BECKER M F,  BREWER A J,  COLBURN E R,  ZEDER R;  US6555926-B2   GONDRON W (GOND-Individual)   GONDRON W;  EP1732652-B1 -- DE10007865-A1   FELCH F (FELC-Individual);  DE19728319-A1   AFFELD K (AFFE-Individual)   AFFELD K;  DE19729965-A1   ;  US4208592-A   LEIBOW B (LEIB-Individual)   LEIBOW B,  LEIBOW I;  US5801454-A   LEININGER J J (LEIN-Individual)   LEININGER J J;  CN1933874-B -- DE10007865-A1   FELCH F (FELC-Individual);  DE19728319-A1   AFFELD K (AFFE-Individual)   AFFELD K;  DE19729965-A1