US6228332-B1 -- DE1946267-A   ;  DE2907887-A   ;  GB364128-A   ;  GB1052513-A   ;  GB1346521-A   ;  GB1448411-A   ;  GB1548997-A   ;  GB1581998-A   ;  NL7502834-A   ZIRISTOR AB (ZIRI);  US2072416-A   ;  US2072417-A   ;  US2438168-A   ;  US2482507-A   ;  US2930706-A   ;  US3814680-A   M D WOOD (WOOD-Individual);  US3817703-A   FILTERING MATERIALS INC (FILT-Non-standard);  US3923663-A   REID W P (REID-Individual)   REID W P;  US3941670-A   MASSACHUSETTS INST TECHNOLOGY (MASI)   PRATT G W;  US3955921-A   LILLY & CO ELI (ELIL)   TENSMEYER L G;  US4042325-A   LILLY & CO ELI (ELIL)   TENSMEYER L G;  US4112124-A   DRISAN PACKAGING LT (DRIS-Non-standard)   JARVIS A S;  US4141686-A   LEWIS J H (LEWI-Individual)   LEWIS J H;  US4265747-A   STERLING DRUG INC (STER)   COPA W M,  GITCHEL W B;  US4304996-A   PURE CYCLE CORP (PURE-Non-standard)   BLADES F K;  US4390432-A   MARUI IND CO LTD (MARO);  MARUI INDUSTRY CO L (MARU-Non-standard)   TAKEGUCHI M,  OYOBE I;  US4433244-A   BAXTER TRAVENOL LAB INC (BAXT)   HOGAN L R;  US4464336-A   USHIO DENKI KK (USHE)   HIRAMOTO T;  US4479762-A   BAXTER TRAVENOL LAB INC (BAXT)   BILSTAD A C,  BROWN R I,  KRUGER R J;  US4534282-A   MARINOZA R A (MARI-Individual)   MARINOZA R A;  US4535247-A   KURTZ M E (KURT-Individual)   KURTZ M E;  US4601822-A   SOUTHWIDE FINANCE (SOUT-Non-standard);  ZAMBURA F (ZAMB-Individual)   ZAMBURRO F;  US4766321-A   LEW J G (LEWJ-Individual)   LEW H S,  STRANAHAN M;  US4769131-A   PURE WATER TECHNOLOGIES INC (PURE-Non-standard);  ELECTROLUX WATER SYSTEMS INC (ELEX);  ELECTROLUX WATER SY (ELEX);  US4871559-A   FOODCO CORP (FOOD-Non-standard);  MAXWELL LABS INC (MAXW-Non-standard)   DUNN J E,  CLARK R W,  ASMUS J F,  PEARLMAN J S,  BOYER K,  PAINCHAUD F,  HOFMANN G;  US4902411-A   LIN F W G (LINF-Individual)   LIN F W G;  US4904874-A   ULTRAVIOLET PURIFIC (ULTR-Non-standard)   ELLNER S;  US4910942-A   FOODCO CORP (FOOD-Non-standard);  MAXWELL LABS INC (MAXW-Non-standard)   DUNN J E,  CLARK R W,  ASMUS J F,  PEARLMAN J S,  BOYER K,  PAINCHAUD F,  HOFMANN G;  US4952511-A   MARTEK CORP (MART-Non-standard)   RADMER R J;  US4968891-A   JHAWAR M M (JHAW-Individual);  SHORT E N (SHOR-Individual)   JHAWAR M M,  SHORT E N;  US4971687-A   KNIGHT J B (KNIG-Individual)   ANDERSON E;  US5034235-A   FOODCO CORP (FOOD-Non-standard);  MAXWELL LABS INC (MAXW-Non-standard)   DUNN J E,  CLARK R W,  ASMUS J F,  PEARLMAN J S,  BOYER K,  PAINCHAUD F,  HOFMANN G;  US5037618-A   PEROXIDATION SYS (PERO-Non-standard);  PEROXIDATION SYST I (PERO-Non-standard)   HAGER D G;  US5120450-A   STANLEY E G (STAN-Individual)   STANLEY E G;  US5144146-A   ULTRAVIOLET ENERGY (ULTR-Non-standard);  US5151252-A   PURUS INC (PURU-Non-standard)   MASS B;  US5208461-A   SIMON HYDRO-AEROBICS INC (SIMO-Non-standard)   TIPTON F D;  US5235905-A   FOODCO CORP (FOOD-Non-standard)   BUSHNELL A H,  DUNN J E,  CLARK R W,  PEARLMAN J S;  US5364645-A   UNIV CALIFORNIA (REGC)   PYNE A W,  LAGUNAS-SOLAR M C;  US5433738-A   STINSON R L (STIN-Individual)   STINSON R L;  US5446289-A   DESPATCH IND LP (DESP-Non-standard)   SHODEEN K,  DAVENPORT S,  MELGAARD H L;  US5466425-A   AMPHION INT LTD (AMPH-Non-standard)   ADAMS B J;  US5498394-A   MATSCHKE A L (MATS-Individual)   MATSCHKE A L;  US5573666-A   KORIN A (KORI-Individual)   KORIN A;  US5597482-A   MELYON S (MELY-Individual)   MELYON S;  US5626768-A   TRITON THALASSIC TECHNOLOGIES INC (TRIT-Non-standard)   STANGROOM J E,  WRIGHT D A,  RESSLER B,  MORGAN G L,  HERBERMANN R J;  US5768853-A   PUREPULSE TECHNOLOGIES INC (PURE-Non-standard)   BUSHNELL A H,  NAESLUND L,  GERSTEN M,  CLARK R W,  OLANDERS P,  MELLBIN H,  MOELLER H,  STARK O,  MEADER D;  US5786812-A   SMK CORP (SMKS)   YOSHIKAWA O,  OKAMURA R,  MIYAZAKI M,  NAKANISHI N;  US5843309-A   PURAGUA INC (PURA-Non-standard)   MANCIL P W;  US5900211-A   PUREPULSE TECHNOLOGIES (PURE-Non-standard)   DUNN J E,  CLARK R W,  BUSHNELL A H,  SALISBURY K J;  WO1982001703-A   ;  WO1988003369-A   ;  WO1989010069-A   ;  WO1995028095-A1   ;  WO1996025048-A1