Patents Reinstated Due To The Acceptance of a
                       Late Maintenance Fee From 9/13/96

Patent Number   Serial Number   Filing Date     Issue Date      Granted Date

4,598,810       06/601,277       04/17/84        07/08/86         09/17/96
4,646,339       06/743,386       06/11/85        02/24/87         09/17/96
4,677,674       06/719,580       04/03/85        06/30/87         09/17/96
4,720,541       06/627,497       07/06/84        01/19/88         09/17/96
4,732,464       06/945,172       12/18/86        03/22/88         09/17/96
4,772,522       07/006,432       01/23/87        09/20/88         09/19/96
4,891,954       07/300,444       01/19/89        01/09/90         09/17/96
4,917,235       07/241,890       09/08/88        04/17/90         09/17/96
4,929,028       07/193,774       05/13/88        05/29/90         09/19/96
4,945,580       07/349,054       05/09/89        08/07/90         09/17/96
4,976,356       07/316,791       02/28/89        12/11/90         09/19/96
4,980,572       07/124,172       01/25/88        12/25/90         09/16/96
4,991,302       07/375,863       07/05/89        02/12/91         09/16/96
5,010,164       07/519,751       05/07/90        04/23/91         09/16/96
5,071,293       07/429,964       10/30/89        12/10/91         09/17/96
5,077,980       07/534,515       06/06/90        01/07/92         09/19/96
5,099,559       07/411,366       09/25/89        03/31/92         09/19/96


                 Patents Reinstated Due To The Acceptance of a
                       Late Maintenance Fee From 9/20/96

Patent Number   Serial Number   Filing Date     Issue Date      Granted Date

4,429,950       06/380,417       05/20/82        02/07/84         09/27/96
4,492,549       06/480,311       03/30/83        01/08/85         09/27/96
4,559,588       06/567,902       01/03/84        12/17/85         09/27/96
4,625,344       06/756,287       07/18/85        12/02/86         09/20/96
4,644,571       06/770,091       08/28/85        02/17/87         09/24/96
4,695,896       06/726,468       04/24/85        09/22/87         09/25/96
4,716,324       06/932,079       11/05/86        12/29/87         09/24/96
4,720,577       06/783,212       10/02/85        01/19/88         09/25/96
4,727,041       06/852,645       04/16/86        02/23/88         09/27/96
4,731,887       07/064,138       06/19/87        03/22/88         09/25/96
4,772,262       07/045,708       04/27/87        09/20/88         09/27/96
4,802,526       06/516,347       07/22/83        02/07/89         09/27/96
4,836,287       07/109,356       10/15/87        06/06/89         09/27/96
4,938,436       07/238,598       08/31/88        07/03/90         09/23/96
4,943,063       07/330,055       03/29/89        07/24/90         09/26/96
4,947,039       07/258,649       10/17/88        08/07/90         09/25/96
4,955,876       07/138,879       02/29/88        09/11/90         09/26/96
5,024,517       07/447,201       12/07/89        06/18/91         09/27/96
5,039,667       07/228,745       08/05/88        08/13/91         09/25/96
5,051,967       07/626,978       12/13/90        09/24/91         09/27/96
5,069,384       07/431,309       11/03/89        12/03/91         09/24/96
5,078,508       07/684,997       04/15/91        01/07/92         09/25/96
5,081,078       07/443,881       11/30/89        01/14/92         09/26/96
5,081,263       07/450,402       12/14/89        01/14/92         09/25/96
5,097,640       07/597,113       10/12/90        03/24/92         09/25/96
5,098,450       07/693,683       04/30/91        03/24/92         09/26/96
5,103,946       07/609,626       11/06/90        04/14/92         09/27/96
5,108,514       07/652,565       02/08/91        04/28/92         09/20/96
5,113,073       07/460,935       03/20/90        05/12/92         09/24/96
5,118,114       07/745,387       08/15/91        06/02/92         09/27/96
5,129,182       07/405,410       09/11/89        07/14/92         09/26/96