Patents Reinstated Due To The Acceptance of a
                       Late Maintenance Fee From 6/28/96

Patent Number   Serial Number   Filing Date    Issue Date   Granted Date

4,431,999       06/396,200      07/08/82        02/14/84        06/28/96
4,507,289       06/566,222      12/28/83        03/26/85        07/01/96
4,670,775       06/701,383      02/14/85        06/02/87        07/01/96
4,720,917       06/947,352      12/29/86        01/26/88        07/01/96
4,722,779       07/012,467      02/09/87        02/02/88        06/28/96
4,723,980       07/077,966      07/24/87        02/09/88        07/02/96
4,953,810       07/476,688      02/08/90        09/04/90        07/01/96
4,958,321       07/247,887      09/22/88        09/18/90        06/28/96
5,046,614       07/559,398      07/26/90        09/10/91        07/03/96
5,046,856       07/406,212      09/12/89        09/10/91        07/01/96
5,057,095       07/437,182      11/16/89        10/15/91        06/28/96
5,057,099       07/523,473      05/14/90        10/15/91        06/28/96
5,065,512       07/432,844      11/07/89        11/19/91        06/28/96
5,084,690       07/695,148      04/29/91        01/28/92        06/28/96
5,092,240       07/486,017      02/28/90        03/03/92        06/28/96
5,092,507       07/552,025      07/13/90        03/03/92        06/28/96
5,092,648       07/545,989      06/29/90        03/03/92        07/03/96
5,101,770       07/608,918      11/05/90        04/07/92        07/03/96
5,108,514       07/652,565      02/08/91        04/28/92        06/28/96
5,108,819       07/479,897      02/14/90        04/28/92        07/03/96


                 Patents Reinstated Due To The Acceptance of a
                       Late Maintenance Fee From 7/05/96

Patent Number   Serial Number   Filing Date    Issue Date   Granted Date

4,401,326       06/331,111      12/16/81        08/30/83        07/09/96
5,052,930       07/489,691      03/07/90        10/01/91        07/11/96


                 Patents Reinstated Due To The Acceptance of a
                       Late Maintenance Fee From 7/12/96

Patent Number   Serial Number   Filing Date   Issue Date    Granted Date

4,350,426       06/240,423      03/04/81        09/21/82        07/16/96
4,377,869       06/259,496      05/01/81        03/22/83        07/18/96
4,436,090       06/291,998      08/11/81        03/13/84        07/17/96
4,470,274       06/487,002      04/21/83        09/11/84        07/17/96
4,604,516       06/515,161      07/19/83        08/05/86        07/16/96
4,707,281       06/740,658      06/03/85        11/17/87        07/17/96
4,713,623       06/330,672      12/14/81        12/15/87        07/17/96
4,731,251       06/877,989      06/24/86        03/15/88        07/17/96
4,891,901       07/025,521      03/13/87        01/09/90        07/17/96
4,929,028       07/193,774      05/13/88        05/29/90        07/15/96
4,943,993       07/403,294      09/05/89        07/24/90        07/18/96
5,035,443       07/500,298      03/27/90        07/30/91        07/17/96
5,060,262       07/519,856      05/07/90        10/22/91        07/17/96
5,061,480       07/432,386      11/03/89        10/29/91        07/17/96
5,071,819       07/236,763      08/26/88        12/10/91        07/17/96
5,093,921       07/452,358      12/19/89        03/03/92        07/17/96