ENVIROGEN INC

Q: Sep 30 2002

Q: Jun 30 2002

Q: Mar 31 2002

FY: Dec 31 2001

Q: Sep 30 2001

Q: Jun 30 2001

Q: Mar 31 2001

FY: Dec 31 2000

Q: Sep 30 2000

Q: Jun 30 2000

Q: Mar 31 2000

FY: Dec 31 1999

Q: Sep 30 1999

Q: Jun 30 1999

Q: Mar 31 1999

FY: Dec 31 1998

Q: Sep 30 1998

Q: Jun 30 1998

Q: Mar 31 1998

FY: Dec 31 1997

5,7

5,7

Financial statements and exhibits

FILED AS OF DATE: 20020813

4,7

4

5,7

5,7

5,7

5,7

Current report pursuant to Section 13 or 15(d)

2,5,7

5,7

Current report pursuant to Section 13 or 15(d)

Prospectus Supplement for Primary Offering

Prospectus Supplement for Primary Offering

Prospectus Supplement for Primary Offering

Registration statement under Securities Act of 1933

Prospectus Supplement for Primary Offering

Registration statement under Securities Act of 1933 (amendment)

Registration statement under Securities Act of 1933 (amendment)

Registration statement under Securities Act of 1933

Post-effective amendment to a registration statement

Post-effective amendment to a registration statement

Post-effective amendment to a registration statement

Post-effective amendment to a registration statement

Post Effective Amendment to S-8

Post-effective amendment to a registration statement

Post Effective Amendment to S-8

Post Effective Amendment to S-8

Post-effective amendment to a registration statement

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

Post-effective amendment to a registration statement

Post-effective amendment to a registration statement

No description available

No description available

Definitive Proxy Statement

Definitive Proxy Statement

Definitive Proxy Statement

Definitive Proxy Statement

Definitive Proxy Statement

No description available

Definitive Proxy Statement

Definitive Proxy Statement

No description available

No description available

ALLEN & CO INC/ALLEN HOLDING INC

ALLEN & CO INC/ALLEN HOLDING INC

KILLEN GROUP INC

ALLEN & CO INC/ALLEN HOLDING INC

ALLEN & CO INC/ALLEN HOLDING INC

KILLEN GROUP INC

WARBURG PINCUS VENTURES LP

ALLEN & CO INC/ALLEN HOLDING INC

No description available