Patents Reinstated Due To The Acceptance of a
                       Late Maintenance Fee From 8/23/96

Patent Number   Serial Number   Filing Date     Issue Date    Granted Date

4,360,854       06/215,569      12/12/80        11/23/82        08/27/96
4,426,336       06/297,736      08/31/81        01/17/84        08/26/96
4,441,087       06/330,599      12/14/81        04/03/84        08/29/96
4,442,326       06/398,403      07/14/82        04/10/84        08/26/96
4,589,475       06/490,531      05/02/83        05/20/86        08/26/96
4,639,952       06/695,549      01/28/85        02/03/87        08/29/96
4,696,034       06/660,512      10/12/84        09/22/87        08/26/96
4,719,053       06/462,340      01/31/83        01/12/88        08/26/96
4,719,683       06/814,234      12/30/85        01/19/88        08/26/96
4,747,773       07/059,332      06/08/87        05/31/88        08/23/96
4,769,413       06/920,558      10/20/86        09/06/88        08/23/96
4,945,287       07/205,993      06/13/88        07/31/90        08/27/96
4,960,271       07/229,488      08/08/88        10/02/90        08/28/96
4,984,177       07/306,001      02/01/89        01/08/91        08/26/96
5,014,570       07/428,961      10/30/89        05/14/91        08/26/96
5,020,268       07/466,859      01/18/90        06/04/91        08/29/96
5,063,765       07/327,968      03/21/89        11/12/91        08/26/96
5,081,214       07/564,043      08/07/90        01/14/92        08/26/96
5,083,400       07/605,779      10/29/90        01/28/92        08/29/96
5,085,241       07/252,264      09/02/88        02/04/92        08/26/96
5,099,799       07/570,523      08/21/90        03/31/92        08/26/96
5,119,988       07/545,399      06/28/90        06/09/92        08/23/96


                 Patents Reinstated Due To The Acceptance of a
                       Late Maintenance Fee From 8/30/96

Patent Number   Serial Number   Filing Date     Issue Date    Granted Date

4,426,325       06/339,788      01/15/82        01/17/84        08/30/96
4,632,268       06/728,257      04/29/85        12/30/86        08/30/96
4,720,651       06/597,326      04/06/84        01/19/88        08/30/96
4,929,022       07/314,164      02/23/89        05/29/90        08/30/96
5,004,146       07/395,355      08/17/89        04/02/91        08/30/96
5,089,958       07/300,469      01/23/89        02/18/92        08/30/96
5,100,776       07/219,656      07/15/88        03/31/92        08/30/96
5,105,672       07/662,253      02/28/91        04/21/92        08/30/96


                 Patents Reinstated Due To The Acceptance of a
                       Late Maintenance Fee From 9/06/96

Patent Number   Serial Number   Filing Date     Issue Date    Granted Date

4,453,074       06/312,705      10/19/81        06/05/84        09/12/96
4,483,890       06/460,143      01/24/83        11/20/84        09/09/96
4,606,133       06/737,786      05/28/85        08/19/86        09/12/96
4,742,837       06/921,442      10/22/86        05/10/88        09/06/96
4,744,481       07/046,394      05/06/87        05/17/88        09/12/96
4,925,674       07/236,375      08/25/88        05/15/90        09/12/96
5,063,574       07/490,769      03/06/90        11/05/91        09/12/96
5,081,150       07/512,078      04/12/90        01/14/92        09/12/96
5,109,078       07/678,470      04/01/91        04/28/92        09/12/96