;  WO9102565-A1 -- DE2848729-A   FA TRIENEKENS M (TRIE-Non-standard)   FLENDER H F;  DE3525701-A   DIDIER-WERKE AG (DIDI)   BENDER H,  BOHM A,  BRUCKNER R;  DE3628030-A   HOFMANN H (HOFM-Individual)   SCHNORR K E;  DE3720833-A   XENEX GES BIOTECH S (XENE-Non-standard)   BISA K,  PAROTH S;  DE3806820-A   SAARBERG FERNWARME (SAAR-Non-standard)   LAUB B;  EP228626-A   DECHEMA DEUT GES CH (DECH-Non-standard);  REHM H J (REHM-Individual)   REHM H J,  KIRCHNER K;  EP275096-A   HOLSCHER R (HOLS-Individual)   HOLSCHER R;  EP379261-A   TAUW INFRA CONSULT (TAUW-Non-standard)   URLINGS L;  US4511657-A   OCCIDENTAL CHEM CORP (OCCI)   COLARUOTOL J F,  IRVINE R L,  KETCHUM L H,  YING W;  WO8905778-A1   HOJGAARD & SCHULTZ (HOJG-Non-standard);  DANSE SUKKERFABRIKKER AS (DASU)   OLSEN O J,  JORGENSEN H L;  WO9102565-A -- DE2848729-A   FA TRIENEKENS M (TRIE-Non-standard)   FLENDER H F;  DE3525701-A   DIDIER-WERKE AG (DIDI)   BENDER H,  BOHM A,  BRUCKNER R;  DE3628030-A   HOFMANN H (HOFM-Individual)   SCHNORR K E;  DE3720833-A   XENEX GES BIOTECH S (XENE-Non-standard)   BISA K,  PAROTH S;  DE3806820-A   SAARBERG FERNWARME (SAAR-Non-standard)   LAUB B;  EP228626-A   DECHEMA DEUT GES CH (DECH-Non-standard);  REHM H J (REHM-Individual)   REHM H J,  KIRCHNER K;  EP275096-A   HOLSCHER R (HOLS-Individual)   HOLSCHER R;  EP379261-A   TAUW INFRA CONSULT (TAUW-Non-standard)   URLINGS L;  US4511657-A   OCCIDENTAL CHEM CORP (OCCI)   COLARUOTOL J F,  IRVINE R L,  KETCHUM L H,  YING W;  WO8905778-A   HOJGAARD & SCHULTZ (HOJG-Non-standard);  DANSE SUKKERFABRIKKER AS (DASU)   OLSEN O J,  JORGENSEN H L;  EP486578-A1 -- DE2848729   FA TRIENEKENS M (TRIE-Non-standard)   FLENDER H F;  DE3525701   DIDIER-WERKE AG (DIDI)   BENDER H,  BOHM A,  BRUCKNER R;  DE3628030   HOFMANN H (HOFM-Individual)   SCHNORR K E;  DE3720833   XENEX GES BIOTECH S (XENE-Non-standard)   BISA K,  PAROTH S;  DE3806820   SAARBERG FERNWARME (SAAR-Non-standard)   LAUB B;  EP228626   DECHEMA DEUT GES CH (DECH-Non-standard);  REHM H J (REHM-Individual)   REHM H J,  KIRCHNER K;  EP275095   ICHIKOH IND KK (ICHI)   KOUJI S;  EP275096   HOLSCHER R (HOLS-Individual)   HOLSCHER R;  EP379261   TAUW INFRA CONSULT (TAUW-Non-standard)   URLINGS L;  US4511657-A   OCCIDENTAL CHEM CORP (OCCI)   COLARUOTOL J F,  IRVINE R L,  KETCHUM L H,  YING W;  WO8905778-A   HOJGAARD & SCHULTZ (HOJG-Non-standard);  DANSE SUKKERFABRIKKER AS (DASU)   OLSEN O J,  JORGENSEN H L;  EP486578-B1 -- DE2848729   FA TRIENEKENS M (TRIE-Non-standard)   FLENDER H F;  DE3525701   DIDIER-WERKE AG (DIDI)   BENDER H,  BOHM A,  BRUCKNER R;  DE3628030   HOFMANN H (HOFM-Individual)   SCHNORR K E;  DE3720833   XENEX GES BIOTECH S (XENE-Non-standard)   BISA K,  PAROTH S;  DE3806820   SAARBERG FERNWARME (SAAR-Non-standard)   LAUB B;  EP228626   DECHEMA DEUT GES CH (DECH-Non-standard);  REHM H J (REHM-Individual)   REHM H J,  KIRCHNER K;  EP275096   HOLSCHER R (HOLS-Individual)   HOLSCHER R;  EP379261   TAUW INFRA CONSULT (TAUW-Non-standard)   URLINGS L;  US4511657-A   OCCIDENTAL CHEM CORP (OCCI)   COLARUOTOL J F,  IRVINE R L,  KETCHUM L H,  YING W;  WO8905778-A   HOJGAARD & SCHULTZ (HOJG-Non-standard);  DANSE SUKKERFABRIKKER AS (DASU)   OLSEN O J,  JORGENSEN H L