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SECURITY AGREEMENT Recorded 2010-01-22

OTOLOGIC, LLC

from AFFINITY VENTURES III, L.P., ALFRED & ROSE ERICKSON TRUST, BR DIRECT MARKETING, INC., BRANDSNESS, DAVID, BRISTER, MATTHEW, BROWN, RICHARD N., BRYNGELSON, JOHN AND CARLYN, CARLSON, DAN H. AND LESLIE T., CLARK, STUART, DACK CATTLE TRUST, DEAN BELBAS, TRUSTEE OF THE DEAN BELBAS REVOCABLE TRUST, DORSEY R. GARDNER 2002 TRUST, ELIZABETH T. JOHNSON AND LEE W. JOHNSON, TRUSTEES OF THE ELIZABETH T. JOHNSON TRUST AGREEMENT, ERICKSON, BRIAN, ERICKSON, DAVID S., ERICKSON, RONALD A. AND KRISTINE S., FAUST, RONALD F. AND GEORGIANA, FERGUSON, JOHN A., III, FRISWOLD, FRED R., GJ GENERAL PARTNERSHIP, H.R. SWANSON REVOCABLE TRUST, HAILS, MARK, HALL, PETER T., HIMLE, JOHN AND KAREN, ILLANES, EDUARDO AND DIANE, JACK J. KORFF TRUST, KASPRICK, KATHLEEN, KASPRICK, LYLE, KAY L. HARDY LIVING TRUST, KENWORTHY, MARIA, KING, DAVID G., KING, JERRY AND MARTHA, KING, JOHN J., KING, LAURIE, KING, MARGARET, KING, MAUREEN, KRISTO, STEVEN J., LEAVERTON, KARL V., LES HARDY, JR. LIVING TRUST, LOFTUS, THOMAS T. AND MARGARET A., LYNCH, PETER S. AND CAROLYN A., MARGULIS, MARTHA H., MEDTRONIC, INC., MOSCHETTI, DONALD J., O. BURTON WASTCOAT TRUST, OLSETH, DALE R., PIHL, MARJORIE J., R. RANDALL VOSBECK REVOCABLE TRUST, RANDALL, WILLIAM C., RICE, DANIEL F., ROGNLIN, WAYNE & MARLENE, RONALD C. WHITE TRUST, S. ALBERT D. HANSER, TRUSTEE FOR S. ALBERT D. HANSER REVOCABLE TRUST U/A, SHLOPAK, GREGORY P., SMITH, PATRICK A. & KAREN D., STEELE, RICHARD, SWENSON, LESTER J. AND DARLENE K., THE LYNCH FOUNDATION, WARDEN, RICHARD H., WOOLLER, JOSEPH W., III, WWF & COMPANY, YOST PARTNERSHIP, L.P.

ACKNOWLEDGEMENT OF RELEASE OF SECURITY AGMT Recorded 2007-03-16

MELROSE, KENDRICK, HANSER, LAURA H., HANSER, S. ALBERT D., TRUSTEE FOR SALLY DODGE HANSER REVOCABLE TRUST U/A, HANSER, S. ALBERT D., TRUSTEE FOR S. ALBERT D. HANSER REVOCABLE TRUST U/A, BELBAS, DEAN, TRUSTEE OF THE DEAN BELBAS REVOCABLE TRUST, COBORN, DANIEL G., COBORN, CHRISTOPHER, LYNCH FOUNDATION, THE, PETER & CAROLYN LYNCH, HANSER, III, ALBERT, SOLON, SR., VLASIE, SHLOPAK, GREGORY P., KING, JERRY & MARTHA

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FIRST AMENDMENT TO SECURITY AGREEMENT OF SECURITY Recorded 2006-08-30

FRISWOLD, FRED R., DORSEY R. GARDNER 2002 TRUST, OLSETH, DALE R., ERICKSON, RONALD A., ERICKSON, KRISTINE S., ERICKSON, DAVID S., ERICKSON, BRIAN, ALFRED & ROSE ERICKSON TRUST

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1ST AMENDMENT TO PATENT SECURITY AGREEMENT Recorded 2006-07-13

AFFINITY VENTURES III, L.P., DEAN BELBAS, TRUSTEE OF THE DEAN BELBAS REVOCABLE TRUST, BR DIRECT MARKETING, INC., BRANDSNESS, DAVID, BRISTER, MATTHEW, BROWN, RICHARD N., JOHN AND CARLYN BRYNGELSON, DAN H. CARLSON AND LESLIE T. CARLSON, CLARK, STUART, DACK CATTLE TRUST, RONALD F. FAUST AND GEORGIANA FAUST TRUSTEES OF THE FAUST FAMILY TRUST, UA, FERGUSON, JOHN A. III, GJ GENERAL PARTNERSHIP, HALL, PETER T. AND MARGULIS, MARTHA H., HANSER, S. ALBERT D., TRUSTEE FOR S. ALBERT D. HANSER REVOCABLE TRUST U/A, LES HARDY, JR. LIVING TRUST, KAY L. HARDY LIVING TRUST, JOHN AND KAREN HIMLE, EDUARDO AND DIANE ILLANES, ELIZABETH T. JOHNSON AND LEE W. JOHNSON TRUSTEES OF THE ELIZABETH T. JOHNSON TRUST AGREEMENT, KASPRICK, LYLE, KASPRICK, KATHLEEN, KENWORTHY, MARIA, JERRY AND MARTHA KING, KING, JOHN J., KING, MAUREEN, MARGARET KING AND MARK HAILS, KING, LAURIE, KING, DAVID G., JACK J. KORFF TRUST, KRISTO, STEVEN J., LEAVERTON, KARL V., THOMAS T. AND MARGARET A. LOFTUS, PETER S. AND CAROLYN A. LYNCH, LYNCH FOUNDATION, THE, MOSCHETTI, DONALD J., PIHL, MARJORIE J., RANDALL, WILLIAM C., RICE, DANIEL F., WAYNE & MARLENE ROGNLIN, SHLOPAK, GREGORY P., PATRICK A. & KAREN D. SMITH, STEELE, RICHARD, H.R. SWANSON REVOCABLE TRUST, LESTER J. AND DARLENE K. SWENSON, R. RANDALL VOSBECK REVOCABLE TRUST, WARDEN, RICHARD H., O. BURTON WASTCOAT TRUST, RONALD C. WHITE TRUST, WWF & COMPANY, WOOLLER, JOSEPH W. III, YOST PARTNERSHIP, L.P.

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2ND AMEND TO PATENT SECURITY AGREEMENT WITH SECURI Recorded 2006-07-13

OTOLOGICS, LLC

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RELEASE OF SECURITY AGMT Recorded 2006-06-15

AFFINITY VENTURES III, L.P., INSULA PROPERTIES, LLC, STERLING TRUST COMPANY, CUSTODIAN, BELBAS, DEAN TRUSTEE OF THE DEAN BELBAS REVOCABLE TRUST, BLACKEY, BRENT & KAREN, BOEHNEN, DAVID L., BRYNGELSON, JOHN & CARLYN, CRAMER, RICHARD D., REVOCABLE TRUST, DACK CATTLE TRUST, BR DIRECT MARKETING, D&R INVESTMENT PARTNERSHIP, ERICKSON, ALFRED & ROSE TRUST, FRISWOLD, FRED R., GARBUTT, JERRY & JANE, GARDNER, DORSEY R. 2002 TRUST, GRANAT, KENNETH & NANCY J., GRANAT, ELIZABETH W., HARDY, JR., LES LIVING TRUST, HARDY, KAY L. LIVING TRUST, JOSPEY FAMILY LIMITED PARTNERSHIP, KEOUGH, STEVEN J., KING, JOHN J., KING, MAUREEN, KRISTO, STEVEN J., PIPER JAFFREY AS CUSTODIAN, LENZ, WILLIAM & JAMISON-LENZ, PAMELA, LEWIS, JR., HARRY T., LINDHAL, DENNIS M., MCFARLAND, RICHARD D., MESLOW, JOHN A. & KAREN J., MEYER, GERALD L., OBERMAN, LAWRENCE A., OBERMEYER, PETER E. & JUDITH C., OLSETH, DALE R., OLSETH FAMILY GRANDCHILDREN'S EDUCATIONAL TRUST, RAHN, NOEL P., ROGNLIN, WAYNE & MARLENE, SMITH, PATRICK A. & KAREN D., SWENSON, LESTER J. & DARLENE K., TOWNSEND, GEORGE, TRIGRAN INVESTMENTS, INC., TSCHETTER, RONALD A., WARDEN, RICHARD H., YOST PARTNERSHIP, L.P., HANSER, LAURA H., HANSER, S. ALBERT D., TRUSTEE FOR HANSER, SALLY DODGE REVOCABLE TRUST U/A, HANSER,S. ALBERT D., TRUSTEE FOR HANSER, ALBERT D. REVOCABLE TRUST U/A, COBORN, DANIEL G., COBORN, CHRISTOPHER, LYNCH FOUNDATION, THE, MELROSE, KENDRICK, ZAWADSKI, STEVEN J. & BARBARA B., HANSER III, ALBERT, SOLON, SR., VLASIE, SHLOPAK, GREGORY P., KING, JERRY & MARTHA, ILLANES, EDUARDO AND DIANE, LYNCH, PETER & CAROLYN

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3RD AMEND TO SECURITY AGMT & SECURITY AGMT Recorded 2006-06-09

MEDTRONIC, INC., FRISWOLD, FRED R., R. GARDNER AND JOHN F. O'BRIEN ORIGINAL TRUSTEES, DORSEY R. GARDNER 2002 TRUST, DATED JANUARY 16, 2003, DORSEY, OLSETH, DALE R., ERICKSON, RONALD A. AND KRISTINE S., ERICKSON, DAVID S., ERICKSON, ALFRED & ROSE ERICKSON TRUST, FBO DONOVAN A., ERICKSON, BRIAN

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SECURITY AGREEMENT Recorded 2006-03-10

DORSEY R. GARDNER 2002 TRUST, TRIGRAN INVESTMENTS, INC., ILLANES, EDUARDO, ILLANES, DIANE

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SECURITY AGREEMENT Recorded 2006-01-25

AFFINITY VENTURES III, L.P., INSULA PROPERTIES, LLC, STERLING TRUST COMPANY, CUSTODIAN, DEAN BELBAS, TRUSTEE OF THE DEAN BELBAS REVOCABLE TRUST, BRENT & KAREN BLACKEY, BOEHNEN, DAVID L., JOHN & CARLYN BRYNGELSON, RICHARD D. CRAMER REVOCABLE TRUST, DACK CATTLE TRUST, BR DIRECT MARKETING, D&R INVESTMENT PARTNERSHIP, ALFRED & ROSE ERICKSON TRUST, FRISWOLD, FRED R., JERRY & JANE GARBUTT, DORSEY R. GARDNER 2002 TRUST, KENNETH & NANCY J. GRANAT, GRANAT, ELIZABETH W., LES HARDY, JR. LIVING TRUST, KAY L. HARDY LIVING TRUST, JOSPEY FAMILY LIMITED PARTNERSHIP, KEOUGH, STEVEN J., KING, JOHN J., KING, MAUREEN, KRISTO, STEVEN J., PIPER JAFFREY AS CUSTODIAN, LENZ, WILLIAM & JAMISON-LENZ, PAMELA, LEWIS, JR., HARRY T., LINDAHL, DENNIS M., MCFARLAND, RICHARD D., JOHN A. & MESLOW, KAREN J., MEYER, GERALD L., OBERMAN, LAWRENCE A., PETER E. & OBERMEYER, JUDITH C., OLSETH, DALE R., OLSETH FAMILY GRANDCHIDREN'S EDUCATIONAL TRUST, RAHN, NOEL P., WAYNE & ROGNLIN, MARLENE, PATRICK A. & SMITH, KAREN D., LESTER J. & SWENSON, DARLENE K., TOWNSEND, GEORGE, TRIGRAN INVESTMENTS, INC., TSCHETTER, RONALD A., WARDEN, RICHARD H., YOST PARTNERSHIP, L.P., STEVEN J. & ZAWADSKI, BARBARA B.

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SECURITY INTEREST Recorded 2005-07-08

OTOLOGICS LLC

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ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded 2002-06-27