Patents Reinstated Due To The Acceptance of a
                       Late Maintenance Fee From 7/26/96

Patent Number    Serial Number    Filing Date    Issue Date   Granted Date

4,350,282        06/219,502          12/23/80      09/21/82       08/01/96
4,422,578        06/299,499          09/04/81      12/27/83       07/31/96
4,451,049        06/375,397          05/06/82      05/29/84       07/31/96
4,507,289        06/566,222          12/28/83      03/26/85       08/01/96
4,646,687        06/761,973          08/02/85      03/03/87       07/31/96
4,674,289        06/748,866          06/26/85      06/23/87       07/26/96
4,705,437        06/697,857          02/04/85      11/10/87       08/01/96
4,713,922        06/905,861          09/10/86      12/22/87       08/01/96
4,917,252        07/341,559          04/21/89      04/17/90       07/31/96
4,965,115        07/293,301          01/04/89      10/23/90       07/29/96
5,034,615        07/515,451          04/27/90      07/23/91       08/01/96
5,035,227        07/474,559          02/02/90      07/30/91       08/01/96
5,055,871        07/418,548          10/05/89      10/08/91       07/31/96
5,056,322        07/637,617          01/04/91      10/15/91       08/01/96
5,067,717        07/611,683          11/07/90      11/26/91       07/29/96
5,071,187        07/619,779          11/29/90      12/10/91       08/01/96
5,071,553        07/060,222          06/10/87      12/10/91       07/31/96
5,082,504        07/462,489          01/10/90      01/21/92       07/31/96
5,088,621        07/520,895          05/08/90      02/18/92       08/01/96
5,098,961        07/301,925          01/26/89      03/24/92       07/29/96
5,102,286        07/685,622          04/15/91      04/07/92       07/31/96
5,111,367        07/777,156          10/16/91      05/05/92       08/01/96


                 Patents Reinstated Due To The Acceptance of a
                       Late Maintenance Fee From 8/02/96

Patent Number    Serial Number    Filing Date    Issue Date   Granted Date

4,378,520        06/232,695          02/09/81      03/29/83       08/05/96
4,917,028        07/217,529          07/11/88      04/17/90       08/05/96
5,091,499        07/456,653          12/29/89      02/25/92       08/05/96
5,092,407        07/190,339          05/05/88      03/03/92       08/08/96
5,092,484        07/533,211          06/04/90      03/03/92       08/08/96


                 Patents Reinstated Due To The Acceptance of a
                       Late Maintenance Fee From 8/09/96

Patent Number    Serial Number    Filing Date    Issue Date   Granted Date

4,389,480        06/224,230          01/12/81      06/21/83       08/12/96
4,411,258        06/365,459          04/05/82      10/25/83       08/09/96
4,426,415        06/329,828          12/11/81      01/17/84       08/14/96
4,436,759        06/362,301          03/26/82      03/13/84       08/14/96
4,536,494        06/608,796          05/10/84      08/20/85       08/16/96
4,581,504        06/707,175          02/28/85      04/08/86       08/14/96
4,597,707        06/642,032          08/17/84      07/01/86       08/16/96
4,623,038        06/741,528          06/04/85      11/18/86       08/12/96
4,720,917        06/947,352          12/29/86      01/26/88       08/14/96
4,869,002        07/233,893          08/15/88      09/26/89       08/16/96
4,921,131        07/224,666          07/27/88      05/01/90       08/14/96
4,940,962        07/158,878          02/22/88      07/10/90       08/15/96
4,941,789        07/151,910          02/03/88      07/17/90       08/09/96
4,997,047        07/491,276          03/09/90      03/05/91       08/15/96
5,019,458        07/340,421          04/19/89      05/28/91       08/15/96
5,020,090        07/434,934          11/13/89      05/28/91       08/12/96
5,033,245        07/511,284          04/20/90      07/23/91       08/12/96
5,055,189        07/578,543          09/04/90      10/08/91       08/12/96
5,056,321        07/617,012          11/20/90      10/15/91       08/12/96
5,057,651        07/498,725          03/26/90      10/15/91       08/14/96
5,081,212        07/414,535          09/29/89      01/14/92       08/15/96
5,082,845        07/311,910          02/17/89      01/21/92       08/15/96
5,094,301        07/489,177          03/05/90      03/10/92       08/15/96
5,097,436        07/462,731          01/09/90      03/17/92       08/16/96
5,097,638        07/493,775          03/15/90      03/24/92       08/14/96
5,097,676        07/602,506          10/24/90      03/24/92       08/12/96
5,099,799        07/570,523          08/21/90      03/31/92       08/16/96