Patents Reinstated Due to the Acceptance of a
                      Late Maintenance Fee From 10/18/96

Patent Number    Serial Number     Filing Date     Issue Date  Granted Date

4,350,527        06/310,475        10/13/81        09/21/82    10/24/96
4,629,607        06/686,993        12/27/84        12/16/86    10/23/96
4,727,626        06/809,610        12/16/85        03/01/88    10/23/96
4,747,315        06/500,809        06/03/83        05/31/88    10/21/96
4,757,865        06/932,706        11/19/86        07/19/88    10/23/96
4,976,732        06/649,909        09/12/84        12/11/90    10/24/96
5,007,557        07/495,806        03/19/90        04/16/91    10/23/96
5,123,258        07/734,628        07/23/91        06/23/92    10/22/96

                 Patents Reinstated Due to the Acceptance of a
                      Late Maintenance Fee From 10/25/96

Patent Number    Serial Number     Filing Date     Issue Date  Granted Date

Re. 32,631       06/884,728        07/10/86        03/29/88    11/01/96
Re. 33,576       07/384,146        07/21/89        04/23/91    10/31/96
Re. 34,186       07/774,578        10/10/91        03/02/93    10/31/96
4,418,740        06/247,292        03/26/81        12/06/83    10/31/96
4,442,326        06/398,403        10/10/91        04/10/84    10/31/96
4,563,808        06/632,667        07/20/84        01/14/86    10/31/96
4,576,301        06/537,680        09/30/83        03/18/86    10/31/96
4,603,333        06/521,722        08/09/83        07/29/86    10/31/96
4,655,390        06/904,455        09/08/86        04/07/87    10/31/96
4,677,798        06/852,021        04/14/86        07/07/87    10/31/96
4,703,465        06/804,803        12/04/85        10/27/87    10/31/96
4,717,402        06/656,708        10/01/84        01/05/88    10/31/96
4,740,375        06/705,023        02/25/85        04/26/88    10/31/96
4,818,905        06/808,629        12/13/85        04/04/89    10/31/96
4,943,063        07/330,055        03/29/89        07/24/90    10/28/96
4,954,300        07/366,757        06/14/89        09/04/90    10/31/96
4,955,566        07/420,911        10/13/89        09/11/90    10/31/96
4,960,271        07/229,488        08/08/88        10/02/90    10/31/96
5,037,836        07/555,887        07/23/90        08/06/91    10/31/96
5,053,046        07/579,105        09/06/90        10/01/91    10/31/96
5,056,704        07/158,797        02/22/88        10/15/91    10/30/96
5,057,423        07/134,717        12/18/87        10/15/91    10/31/96
5,063,896        07/568,870        08/17/90        11/12/91    10/30/96
5,071,819        07/236,763        08/26/88        12/10/91    10/31/96
5,116,110        07/318,671        03/03/89        05/26/92    10/29/96
5,117,366        07/372,730        06/28/89        05/26/92    10/31/96
5,126,153        07/625,017        12/10/90        06/30/92    10/31/96
5,127,720        07/605,128        10/24/90        07/07/92    10/31/96
5,129,737        07/646,193        01/28/91        07/14/92    10/30/96