UNITED STATES




UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C.  20549



SCHEDULE 13G

(Amendment No. 7)*


UNDER THE SECURITIES EXCHANGE ACT OF 1934



CURON MEDICAL, INC.

(Name of Issuer)


Common Stock

(Title of Class of Securities)


231292 10 3

(CUSIP Number)



December 31, 2007

(Date of Event Which Requires Filing of this Statement)


Check the appropriate box to designate the rule pursuant to which this Schedule is filed:


[   ]

Rule 13d-1(b)

[X]

Rule 13d-1(c)

[   ]

Rule 13d-1(d)


*

The remainder of this cover page shall be filled out for a reporting person’s initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page.

The information required in the remainder of this cover page shall not be deemed to be “filed” for the purpose of Section 18 of the Securities Exchange Act of 1934 (“Act”) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).




Page 1 of 13 pages




CUSIP No. 231292 10 3

         Page 2 of 13 Pages


  (1) Names of Reporting Persons.  SS or I.R.S. Identification Nos. of Above Persons

ONSET Enterprise Associates III, L.P.1

  (2) Check The Appropriate Box If A Member Of A Group

(a)

(b)

X


  (3)

SEC Use Only


  (4)

Citizenship or Place of Organization

Delaware


Number Of Shares

(5)

Sole Voting Power

-0-

Beneficially Owned

By Each Reporting

(6)

Shared Voting Power

626,659

Person With

(7)

Sole Dispositive Power

-0-

(8)

Shared Dispositive Power 626,659

  (9)

Aggregate Amount Beneficially Owned By Each Reporting Person

626,659

  (10)

Check If The Aggregate Amount In Row (9)  Excludes Certain Shares*


  (11)

Percent Of Class Represented By Amount In Row (9)

5.78%

  (12)

Type Of Reporting Person

PN

 
 

*SEE INSTRUCTION BEFORE FILLING OUT!

1 Voting or dispositive decisions over the shares listed in Row (9) are made by the following individuals: Terry L. Opdendyk and Robert F. Kuhling, Jr.



Page 2 of 13 pages




CUSIP No. 231292 10 3

         Page 3 of 13 Pages


  (1) Names of Reporting Persons.  SS or I.R.S. Identification Nos. of Above Persons

OEA III Management, L.L.C.2

  (2) Check The Appropriate Box If A Member Of A Group

(a)

(b)

X


  (3)

SEC Use Only


  (4)

Citizenship or Place of Organization

California


Number Of Shares

(5)

Sole Voting Power

-0-

Beneficially Owned

By Each Reporting

(6)

Shared Voting Power

626,659

Person With

(7)

Sole Dispositive Power

-0-

(8)

Shared Dispositive Power 626,659

  (9)

Aggregate Amount Beneficially Owned By Each Reporting Person

626,659

  (10)

Check If The Aggregate Amount In Row (9)  Excludes Certain Shares*


  (11)

Percent Of Class Represented By Amount In Row (9)

5.78%

  (12)

Type Of Reporting Person

OO

*SEE INSTRUCTION BEFORE FILLING OUT!

2 Voting or dispositive decisions over the shares listed in Row (9) are made by the following individuals: Terry L. Opdendyk and Robert F. Kuhling, Jr.



Page 3 of 13 pages




CUSIP No. 231292 10 3  

         Page 4 of 13 Pages


  (1) Names of Reporting Persons.  SS or I.R.S. Identification Nos. of Above Persons

ONSET IV, L.P.3

  (2) Check The Appropriate Box If A Member Of A Group

(a)

(b)

X


  (3)

SEC Use Only


  (4)

Citizenship or Place of Organization

Delaware


Number Of Shares

(5)

Sole Voting Power

-0-

Beneficially Owned

By Each Reporting

(6)

Shared Voting Power

121,287

Person With

(7)

Sole Dispositive Power

-0-

(8)

Shared Dispositive Power

121,287

  (9)

Aggregate Amount Beneficially Owned By Each Reporting Person

121,287

  (10)

Check If The Aggregate Amount In Row (9)  Excludes Certain Shares*


  (11)

Percent Of Class Represented By Amount In Row (9)

1.12%

  (12)

Type Of Reporting Person

PN

*SEE INSTRUCTION BEFORE FILLING OUT!

3 Voting or dispositive decisions over the shares listed in Row (9) are made by the following individuals: Terry L. Opdendyk, Robert F. Kuhling, Jr., Susan A. Mason and F. Leslie Bottorff.



Page 4 of 13 pages




CUSIP No. 231292 10 3  

         Page 5 of 13 Pages


  (1) Names of Reporting Persons.  SS or I.R.S. Identification Nos. of Above Persons

ONSET IV Entrepreneurs, L.P.4

  (2) Check The Appropriate Box If A Member Of A Group

(a)

(b)

X


  (3)

SEC Use Only


  (4)

Citizenship or Place of Organization

Delaware


Number Of Shares

(5)

Sole Voting Power

-0-

Beneficially Owned

By Each Reporting

(6)

Shared Voting Power

3,712

Person With

(7)

Sole Dispositive Power

-0-

(8)

Shared Dispositive Power

3,712

  (9)

Aggregate Amount Beneficially Owned By Each Reporting Person

3,712

  (10)

Check If The Aggregate Amount In Row (9)  Excludes Certain Shares*


  (11)

Percent Of Class Represented By Amount In Row (9)

0.03%

  (12)

Type Of Reporting Person

PN

*SEE INSTRUCTION BEFORE FILLING OUT!

4 Voting or dispositive decisions over the shares listed in Row (9) are made by the following individuals: Terry L. Opdendyk, Robert F. Kuhling, Jr., Susan A. Mason and F. Leslie Bottorff.



Page 5 of 13 pages




CUSIP No. 231292 10 3

         Page 6 of 13 Pages


  (1) Names of Reporting Persons.  SS or I.R.S. Identification Nos. of Above Persons

ONSET IV Management, L.L.C.5

  (2) Check The Appropriate Box If A Member Of A Group

(a)

(b)

X


  (3)

SEC Use Only


  (4)

Citizenship or Place of Organization

Delaware


Number Of Shares

(5)

Sole Voting Power

-0-

Beneficially Owned

By Each Reporting

(6)

Shared Voting Power

124,999

Person With

(7)

Sole Dispositive Power

-0-

(8)

Shared Dispositive Power

124,999

  (9)

Aggregate Amount Beneficially Owned By Each Reporting Person

124,999

  (10)

Check If The Aggregate Amount In Row (9)  Excludes Certain Shares*


  (11)

Percent Of Class Represented By Amount In Row (9)

1.15%

  (12)

Type Of Reporting Person

OO

*SEE INSTRUCTION BEFORE FILLING OUT!

5 Voting or dispositive decisions over the shares listed in Row (9) are made by the following individuals: Terry L. Opdendyk, Robert F. Kuhling, Jr., Susan A. Mason and F. Leslie Bottorff.



Page 6 of 13 pages




CUSIP No. 231292 10 3

         Page 7 of 13 Pages


  (1) Names of Reporting Persons.  SS or I.R.S. Identification Nos. of Above Persons

ONSET Venture Services Corporation6

  (2) Check The Appropriate Box If A Member Of A Group

(a)

(b)

X


  (3)

SEC Use Only


  (4)

Citizenship or Place of Organization

California


Number Of Shares

(5)

Sole Voting Power

-0-

Beneficially Owned

By Each Reporting

(6)

Shared Voting Power

-0-

Person With

(7)

Sole Dispositive Power

-0-

(8)

Shared Dispositive Power

-0-

  (9)

Aggregate Amount Beneficially Owned By Each Reporting Person

-0-

  (10)

Check If The Aggregate Amount In Row (9)  Excludes Certain Shares*


  (11)

Percent Of Class Represented By Amount In Row (9)

0%

  (12)

Type Of Reporting Person

CO

*SEE INSTRUCTION BEFORE FILLING OUT!

6 Voting or dispositive decisions over the shares listed in Row (9) are made by the following individuals: Terry L. Opdendyk and Robert F. Kuhling, Jr.



Page 7 of 13 pages




CUSIP No. 231292 10 3

         Page 8 of 13 Pages


  (1) Names of Reporting Persons.  SS or I.R.S. Identification Nos. of Above Persons

Robert F. Kuhling, Jr.

  (2) Check The Appropriate Box If A Member Of A Group

(a)

(b)

X


  (3)

SEC Use Only


  (4)

Citizenship or Place of Organization

United States


Number Of Shares

(5)

Sole Voting Power

-0-

Beneficially Owned

By Each Reporting

(6)

Shared Voting Power

751,658

Person With

(7)

Sole Dispositive Power

-0-

 

(8)

Shared Dispositive Power 751,658

  (9)

Aggregate Amount Beneficially Owned By Each Reporting Person

751,658

  (10)

Check If The Aggregate Amount In Row (9)  Excludes Certain Shares*


  (11)

Percent Of Class Represented By Amount In Row (9)

6.94%

  (12)

Type Of Reporting Person

IN

*SEE INSTRUCTION BEFORE FILLING OUT!



Page 8 of 13 pages




CUSIP No. 231292 10 3

       Page 9 of 13 Pages


  (1) Names of Reporting Persons.  SS or I.R.S. Identification Nos. of Above Persons

Terry L. Opdendyk

  (2) Check The Appropriate Box If A Member Of A Group

(a)

(b)

X


  (3)

SEC Use Only


  (4)

Citizenship or Place of Organization

United States


Number Of Shares

(5)

Sole Voting Power

 -0-

Beneficially Owned

By Each Reporting

(6)

Shared Voting Power

751,658

Person With

(7)

Sole Dispositive Power

 -0-

(8)

Shared Dispositive Power 751,658

  (9)

Aggregate Amount Beneficially Owned By Each Reporting Person

751,658

  (10)

Check If The Aggregate Amount In Row (9)  Excludes Certain Shares*


  (11)

Percent Of Class Represented By Amount In Row (9)

6.94%

  (12)

Type Of Reporting Person

IN

*SEE INSTRUCTION BEFORE FILLING OUT!




Page 9 of 13 pages



Item 1.

(a)

Name of Issuer:  Curon Medical, Inc. (“Issuer”)

(b)

Address of Issuer’s Principal Executive Offices:


46117 Landing Parkway

Fremont, California  94538

United States of America

Item 2.

(a)

Name of Person Filing:


ONSET Enterprise Associates III, L.P. (“OEAIII”)

OEA III Management, L.L.C. (“OEAIIIM”)

ONSET IV, L.P. (“ONSETIV”)

ONSET IV Entrepreneurs, L.P. (“ONSETIVE”)

ONSET IV Management, L.L.C. (“ONSETIVM”)

ONSET Venture Services Corporation (“OVSC”)

Robert F. Kuhling, Jr. (“RFK”)

Terry L. Opdendyk (“TLO”)

(b)

Address of Principal Business Office:


2400 Sand Hill Road, Suite 150

Menlo Park, California  94025

 (c)

Citizenship/Place of Organization:


Entities:

OEAIII

-

Delaware

OEAIIIM

-

California

ONSETIV

-

Delaware

ONSETIVE

-

Delaware

ONSETIVM

-

Delaware

OVSC

-

California


Individuals:

RFK

-

United States

TLO

-

United States

(d)

Title of Class of Securities:

Common Stock

(e)

CUSIP Number:  231292 10 3

Item 3.

Not applicable.



Page 10 of 13 pages



Item 4

Ownership.

  

OEAIII

OEAIIIM

ONSETIV

ONSETIVE

ONSETIVM

OVSC

RFK

TLO

(a)

Beneficial Ownership

626,659

626,659

121,287

3,712

124,999

-0-

751,658

751,658

(b)

Percentage of Class

5.78%

5.78%

1.12%

0.03%

1.15%

0%

6.94%

6.94%

(c)

Sole Voting Power

-0-

-0-

-0-

-0-

-0-

-0-

-0-

-0-

 

Shared Voting Power

626,659

626,659

121,287

3,712

124,999

-0-

751,658

751,658

 

Sole Dispositive Power

-0-

-0-

-0-

-0-

-0-

-0-

-0-

-0-

 

Shared Dispositive Power

626,659

626,659

121,287

3,712

124,999

-0-

751,658

751,658


Item 5.

Ownership of Five Percent or Less of a Class

Not applicable.

Item 6.

Ownership of More than Five Percent on Behalf of Another Person

Under certain circumstances set forth in the limited partnership agreements of each of OEAIII, ONSETIV, and ONSETIVE and the limited liability company agreements of each of OEAIIIM and ONSETIVM, the general and limited partners of each of such entities may be deemed to have the right to receive dividends from, or the proceeds from, the sale of shares of the Issuer owned by each such entity of which they are a partner.

Item 7.

Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on By the Parent Holding Company.

Not applicable.

Item 8.

Identification and Classification of Members of the Group

No reporting person is a member of a group as defined in Section 240.13d-1(b)(1)(ii)(J) of the Act.

Item 9.

Notice of Dissolution of Group

Not applicable.

Item 10.

Certification

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.  By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect.



Page 11 of 13 pages




Date:

February 5, 2008


ONSET Enterprise Associates III, L.P.

ONSET IV, L.P.

By:

OEA III Management, L.L.C.

By:

ONSET IV Management, L.L.C.

Its general partner

Its general partner


By:     /s/ Terry L. Opdendyk                                        

By:     /s/ Terry L. Opdendyk                                        

Managing Director

Managing Director



OEA III Management, L.L.C.

ONSET IV Entrepreneurs, L.P.

By:

ONSET IV Management, L.L.C.

Its general partner


By:     /s/ Terry L. Opdendyk                                        

By:     /s/ Terry L. Opdendyk                                        

Managing Director

Managing Director



ONSET Venture Services Corporation

ONSET IV Management, L.L.C.


By:     /s/ Robert F. Kuhling, Jr.                                     

By:     /s/ Terry L. Opdendyk                                        

President

Managing Director



          /s/ Robert F. Kuhling, Jr.                                     

Robert F. Kuhling, Jr



          /s/ Terry L. Opdendyk                                        

Terry L. Opdendyk


EXHIBITS


A:

Joint Filing Statement



Page 12 of 13 pages



Exhibit A


Agreement of Joint Filing



We, the undersigned, hereby express our agreement that the attached Schedule 13G is filed on behalf of us.

Date:

February 5, 2008

ONSET Enterprise Associates III, L.P.

ONSET IV, L.P.

By:

OEA III Management, L.L.C.

By:

ONSET IV Management, L.L.C.

Its general partner

Its general partner


By:     /s/ Terry L. Opdendyk                                        

By:     /s/ Terry L. Opdendyk                                        

Managing Director

Managing Director



OEA III Management, L.L.C.

ONSET IV Entrepreneurs, L.P.

By:

ONSET IV Management, L.L.C.

Its general partner

By:     /s/ Terry L. Opdendyk                                        

Managing Director

By:     /s/ Terry L. Opdendyk                                        

Managing Director



ONSET Venture Services Corporation

ONSET IV Management, L.L.C.


By:     /s/ Robert F. Kuhling, Jr.                                     

By:     /s/ Terry L. Opdendyk                                        

President

Managing Director



          /s/ Robert F. Kuhling, Jr.                                     

Robert F. Kuhling, Jr.



          /s/ Terry L. Opdendyk                                        

Terry L. Opdendyk





Page 13 of 13 pages