WO9309160-A1 -- US3074108-A   ;  US3676539-A   MOBIL OIL CORP (MOBI);  US3765067-A   MOBIL OIL CO (MOBI);  US4385022-A   MOBIL OIL CORP (MOBI)   ROHN C L;  US4687611-A   DU PONT DE NEMOURS & CO E I (DUPO)   SROOG C E;  US4820791-A   NAT AERO & SPACE ADMIN (USAS);  US GOVERNMENT (USGO)   HERGENROTH P M,  HAVENS S J;  US4822451-A   MINNESOTA MINING & MFG CO (MINN)   OUDERKIRK A J,  DUNN D S,  WARNER R W;  US4879176-A   MINNESOTA MINING & MFG CO (MINN)   OUDERKIRK A J,  DUNN D S,  WARNER R W;  US4959440-A   MITSUI TOATSU CHEM INC (MITK);  US4978712-A   AMERICAN TELEPHONE & TELEGRAPH CO (AMTT)   BAIR H E,  MATSUOKA S;  US5037587-A   MITSUI TOATSU CHEM INC (MITK)   SARUWATARI M M,  FUJII Y,  OHTA Y,  HONJI Y,  TSUJI S,  MORIYA S;  US5053180-A   ALUMINUM CO OF AMERICA (ALUM)   WANG P T,  HUMPHRIES D V,  MILSOM J H;  US5064697-A   RICOH KK (RICO);  NIPPON OIL KK (NIOC);  US5264534-A -- US2336384-A   ;  US3074108-A   ;  US3296352-A   IMPERIAL CHEM IND LTD (ICIL);  US3619461-A   DU PONT DE NEMOURS & CO E I (DUPO);  US3676539-A   MOBIL OIL CORP (MOBI);  US3765067-A   MOBIL OIL CO (MOBI);  US4110395-A   PLAST POLYMER PRODN (PLAS-Soviet Institute);  AKUTIN M S (AKUT-Individual);  US4385022-A   MOBIL OIL CORP (MOBI)   ROHN C L;  US4405550-A   MOBIL OIL CORP (MOBI)   HUNGERFORD G P;  US4426486-A   MOBIL OIL CORP (MOBI)   HUNGERFORD G P;  US4687611-A   DU PONT DE NEMOURS & CO E I (DUPO)   SROOG C E;  US4690999-A   HITACHI LTD (HITA);  HITACHI CHEM CO LTD (HITB)   NUMATA S I,  FUJISAKI K,  KINJO N,  IMAIZUMI J,  MIKAMI Y;  US4788098-A   UBE IND LTD (UBEI);  US4792476-A   HITACHI LTD (HITA);  HITACHI CHEM CO LTD (HITB)   NUMATA S I,  FUJISAKI K,  KINJO N,  IMAIZUMI J,  MIKAMI Y;  US4820791-A   NAT AERO & SPACE ADMIN (USAS);  US GOVERNMENT (USGO)   HERGENROTH P M,  HAVENS S J;  US4822451-A   MINNESOTA MINING & MFG CO (MINN)   OUDERKIRK A J,  DUNN D S,  WARNER R W;  US4839232-A   MITSUI TOATSU CHEM INC (MITK);  MORITA M (MORI-Individual)   MORITA M,  MIYAZAKI K,  YAMAGUCHI A,  OHTA M,  TAMAI S,  NISHIHARA K;  US4879176-A   MINNESOTA MINING & MFG CO (MINN)   OUDERKIRK A J,  DUNN D S,  WARNER R W;  US4892896-A   ETHYL CORP (ETHY)   WRIGHT W E;  US4959440-A   MITSUI TOATSU CHEM INC (MITK);  US4960556-A   PLM AB (PLTM)   OEHLENSCHL U,  SORENSEN E,  PEDERSEN J R;  US4978712-A   AMERICAN TELEPHONE & TELEGRAPH CO (AMTT)   BAIR H E,  MATSUOKA S;  US5032209-A   MINNESOTA MINING & MFG CO (MINN);  US5037587-A   MITSUI TOATSU CHEM INC (MITK)   SARUWATARI M M,  FUJII Y,  OHTA Y,  HONJI Y,  TSUJI S,  MORIYA S;  US5049347-A   UNIV OF PITTSBURGH (UYPI-Non-standard)   MAGILL J H,  SHANKERNAR M;  US5053180-A   ALUMINUM CO OF AMERICA (ALUM)   WANG P T,  HUMPHRIES D V,  MILSOM J H;  US5064697-A   RICOH KK (RICO);  NIPPON OIL KK (NIOC);  US5115090-A   IBM CORP (IBMC)   SACHDEV K G,  HUMMEL J P,  KWONG R W L,  LANG R N,  LINEHAN L L,  SACHDEV H S;  US5145942-A   NAT AERO & SPACE ADMIN (USAS)   HERGENROTH P M,  HAVENS S J