HYCOR BIOMEDICAL INC /DE/

Certification of termination of registration of a class of securities (Section 12(g))

General form for quarterly reports under Section 13 or 15(d)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

7,9

Written communication about a business combination transaction (Rule 425)

Annual report pursuant to Section 13 or 15(d)

Financial statements and exhibits

7,9

7,9

Written communication about a business combination transaction (Rule 425)

Beneficial ownership report for a passive holder of more than 5% (Schedule 13G) (amendment)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

General form for quarterly reports under Section 13 or 15(d)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

General form for quarterly reports under Section 13 or 15(d)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

5,7

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

7,9

General form for quarterly reports under Section 13 or 15(d)

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

Definitive Proxy Statement

7,9

Annual report pursuant to Section 13 or 15(d)

General form for quarterly reports under Section 13 or 15(d)

General form for quarterly reports under Section 13 or 15(d)

General form for quarterly reports under Section 13 or 15(d)

Definitive Proxy Statement

No description available

General form for quarterly reports under Section 13 or 15(d)

General form for quarterly reports under Section 13 or 15(d)

General form for quarterly reports under Section 13 or 15(d)

Definitive Proxy Statement

No description available

General form for quarterly reports under Section 13 or 15(d)

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

General form for quarterly reports under Section 13 or 15(d)

General form for quarterly reports under Section 13 or 15(d)

Definitive Proxy Statement

No description available

General form for quarterly reports under Section 13 or 15(d)

General form for quarterly reports under Section 13 or 15(d)

Definitive Proxy Statement

Definitive Proxy Statement

2,7

Definitive Proxy Statement

Definitive Proxy Statement

2,7

ANDERSON SAMUEL D

THUNE NELSON F

PHELPS JAMES R

SCHMIDT RICHARD E

DEAL MARY JOANNE

JONES REG P

THOLEN J DAVID

DAVOUDZADEH DAVID PHD

THUNE NELSON F

GORDON DAVID S MD

JONES REG P

DEAL MARY JOANNE

DAVOUDZADEH DAVID PHD

THUNE NELSON F

DAVOUDZADEH DAVID PHD

THUNE NELSON F

JONES REG P

DAVOUDZADEH DAVID PHD

DEAL MARY JOANNE