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Patent Assignment Assignee Details
NOTE:Results display only for issued patents and published applications. For pending or abandoned applications please consult USPTO staff.

Assignee Name : YOUL CHON CHEMICAL CO., LTD.
Total Assignments: 23
Assignment: 1
Reel/Frame:013772/0956   Pages: 3
Recorded: 02/20/2003
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
11/23/2001
2
Exec Dt:
11/23/2001
3
Exec Dt:
11/23/2001
4
Exec Dt:
11/23/2001
5
Exec Dt:
11/23/2001
Assignees
1
39-1 HAWOLGOK-DONG, SEONGBUK-GU
SEOUL, KOREA, REPUBLIC OF
2
370-1 SINDAEBANG-DONG, DONGJAK-GU
SEOUL 156-709, KOREA, REPUBLIC OF
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
10038648
Correspondence name and address
OBLON SPIVAK MCCLELLAND MAIER & NEUSTADT
MARVIN J. SPIVAK
1940 DUKE STREET
ALEXANDRIA, VA 22314
Assignment: 2
Reel/Frame:013788/0001   Pages: 3
Recorded: 02/26/2003
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
11/23/2001
2
Exec Dt:
11/23/2001
3
Exec Dt:
11/23/2001
4
Exec Dt:
11/23/2001
5
Exec Dt:
11/23/2001
Assignees
1
39-1 HAWOLGOK-DONG, SEONGBUK-GU
SEOUL, KOREA, REPUBLIC OF
2
370-1 SINDAEBANG-DONG, DONGJAK-GU
SEOUL 156-709, KOREA, REPUBLIC OF
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10038649
Correspondence name and address
OBLON, SPIVAK, MCCLELLAND, MAIER & NEUST
1940 DUKE STREET
ALEXANDRIA, VA 22314
ATTN: MARVIN J. SPIVAK
Assignment: 3
Reel/Frame:013420/0891   Pages: 3
Recorded: 10/23/2002
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
09/23/2002
2
Exec Dt:
09/23/2002
3
Exec Dt:
09/23/2002
4
Exec Dt:
09/23/2002
5
Exec Dt:
09/23/2002
6
Exec Dt:
09/23/2002
7
Exec Dt:
09/23/2002
Assignees
1
39-1 HAWOLGOK-DONG, SEONGBUK-GU
SEOUL 136-791, KOREA, REPUBLIC OF
2
370-1 SINDAEBANG-DONG, DONGJAK-GU
SEOUL 156-709, KOREA, REPUBLIC OF
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10278952
Correspondence name and address
PENNIE & EDMONDS LLP
FRANCIS E. MORRIS
3300 HILLVIEW AVENUE
PALO ALTO, CA 94304
Assignment: 4
Reel/Frame:013442/0882   Pages: 3
Recorded: 10/28/2002
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
09/23/2002
2
Exec Dt:
09/23/2002
3
Exec Dt:
09/23/2002
4
Exec Dt:
09/23/2002
5
Exec Dt:
09/23/2002
6
Exec Dt:
09/23/2002
7
Exec Dt:
09/23/2002
Assignees
1
39-1 HAWOLGOK-DONG, SEONGBUK-GU
SEOUL 136-791, KOREA, REPUBLIC OF
2
370-1 SINDAEBANG-DONG, DONGJAK-GU
SEOUL 156-709, KOREA, REPUBLIC OF
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10282532
Correspondence name and address
PENNIE & EDMONDS LLP
FRANCIS E. MORRIS
3300 HILLVIEW AVENUE
PALO ALTO, CA 94304
Assignment: 5
Reel/Frame:015693/0711   Pages: 2
Recorded: 03/24/2004
Attorney Dkt #:de1560
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
03/02/2004
2
Exec Dt:
03/02/2004
3
Exec Dt:
03/02/2004
4
Exec Dt:
03/02/2004
5
Exec Dt:
03/02/2004
6
Exec Dt:
03/02/2004
Assignee
1
#370-1, SINDAEBANG-DONG
DONGJAK-GU, SEOUL 156-848, KOREA, REPUBLIC OF
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10490671
Correspondence name and address
ANDERSON, KILL & OLICK, P.C.
DAVID A. EINHORN, ESQ.
1251 AVENUE OF THE AMERICAS
42ND FLOOR
NEW YORK, NY 10020-1182
Assignment: 6
Reel/Frame:017932/0812   Pages: 3
Recorded: 05/19/2006
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
04/11/2006
2
Exec Dt:
04/11/2006
3
Exec Dt:
04/11/2006
4
Exec Dt:
04/11/2006
5
Exec Dt:
04/11/2006
Assignee
1
#370-1, SINDAEBANG-DONG, DONGJAK-GU
SEOUL, KOREA, REPUBLIC OF 156-709
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10580102
Correspondence name and address
SUGHRUE MION, PLLC
2100 PENNSYLVANIA AVENUE, N.W.
SUITE 800
WASHINGTON, DC 20037
Assignment: 7
Reel/Frame:018549/0688   Pages: 2
Recorded: 11/06/2006
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
09/18/2006
2
Exec Dt:
09/18/2006
3
Exec Dt:
09/18/2006
Assignee
1
#370-1, SINDAEBANG-DONG
DONGJAK-GU
SEOUL, 156-709, KOREA, REPUBLIC OF
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11579619
Correspondence name and address
SUGHRUE MION, PLLC
2100 PENNSYLVANIA AVENUE, N.W.
SUITE 800
WASHINGTON, DC 20037
Assignment: 8
Reel/Frame:019162/0093   Pages: 3
Recorded: 04/16/2007
Attorney Dkt #:AN1
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
03/05/2007
2
Exec Dt:
03/05/2007
3
Exec Dt:
03/05/2007
4
Exec Dt:
03/05/2007
Assignee
1
370-1 SINDAEBANG-DONG
DONGJAK-GU
SEOUL, KOREA, REPUBLIC OF
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
11715989
Correspondence name and address
BROWDY AND NEIMARK PLLC
624 NINTH STREET NW
SUITE 300
WASHINGTON, DC 20001-5303
Assignment: 9
Reel/Frame:021247/0271   Pages: 4
Recorded: 07/16/2008
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
01/10/2008
2
Exec Dt:
01/10/2008
3
Exec Dt:
01/10/2008
4
Exec Dt:
01/10/2008
5
Exec Dt:
01/10/2008
6
Exec Dt:
01/10/2008
7
Exec Dt:
01/10/2008
8
Exec Dt:
01/10/2008
9
Exec Dt:
01/10/2008
10
Exec Dt:
01/10/2008
11
Exec Dt:
01/10/2008
Assignee
1
370-1, SINDAEBANG 2-DONG, DONGIAK-GU
SEOUL, KOREA, DEMOCRATIC PEOPLE'S REPUBLIC OF 156-010
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11994964
Correspondence name and address
BROWDY AND NEIMARK PLLC
624 NINTH STREET NW
SUITE 300
WASHINGTON, DC 20001-5303
Assignment: 10
Reel/Frame:034994/0455   Pages: 6
Recorded: 02/13/2015
Attorney Dkt #:KIM21
Conveyance: CORRECTIVE ASSIGNMENT TO CORRECT THE COUNTRY OF ASSIGNEE PREVIOUSLY RECORDED AT REEL: 021247 FRAME: 0271. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT.
Assignors
1
Exec Dt:
01/10/2008
2
Exec Dt:
01/10/2008
3
Exec Dt:
01/10/2008
4
Exec Dt:
01/10/2008
5
Exec Dt:
01/10/2008
6
Exec Dt:
01/10/2008
7
Exec Dt:
01/10/2008
8
Exec Dt:
01/10/2008
9
Exec Dt:
01/10/2008
10
Exec Dt:
01/10/2008
11
Exec Dt:
01/10/2008
Assignee
1
370-1, SINDAEBANG 2-DONG, DONGIAK-GU
SEOUL, KOREA, REPUBLIC OF 156-010
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11994964
Correspondence name and address
BROWDY AND NEIMARK, PLLC
1625 K STREET, N.W.
SUITE 1100
WASHINGTON, DC 20006
Assignment: 11
Reel/Frame:023547/0881   Pages: 3
Recorded: 11/19/2009
Attorney Dkt #:27784-16245
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
11/16/2009
2
Exec Dt:
11/16/2009
Assignee
1
370-1, SINDAEBANG-DONG, DONGJAK-GU
SEOUL, KOREA, REPUBLIC OF 156-709
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
12600977
Correspondence name and address
JAE WON SONG
FENWICK & WEST LLP
801 CALIFORNIA STREET
MOUNTAIN VIEW, CA 94041
Assignment: 12
Reel/Frame:023572/0666   Pages: 3
Recorded: 11/25/2009
Attorney Dkt #:27784-16255
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
11/17/2009
2
Exec Dt:
11/17/2009
Assignee
1
370-1, SINDAEBANG-DONG, DONGJAK-GU
SEOUL, KOREA, REPUBLIC OF 156-709
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
12601964
Correspondence name and address
JAE WON SONG
FENWICK & WEST LLP
801 CALIFORNIA STREET
MOUNTAIN VIEW, CA 94041
Assignment: 13
Reel/Frame:023851/0130   Pages: 4
Recorded: 01/26/2010
Attorney Dkt #:27784-16374
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
12/18/2009
2
Exec Dt:
12/18/2009
3
Exec Dt:
12/18/2009
Assignee
1
#370-1, SINDAEBANG-DONG, DONGJAK-GU
SEOUL, KOREA, REPUBLIC OF 156-709
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
12670835
Correspondence name and address
JAE WON SONG
FENWICK & WEST LLP
801 CALIFORNIA STREET
MOUNTAIN VIEW, CA 94041
Assignment: 14
Reel/Frame:025366/0852   Pages: 4
Recorded: 11/16/2010
Attorney Dkt #:Q121776
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
11/04/2010
2
Exec Dt:
11/04/2010
3
Exec Dt:
11/04/2010
4
Exec Dt:
11/04/2010
Assignee
1
#370-1 SINDAEBANG-DONG, DONGJAK-GU
SEOUL, KOREA, REPUBLIC OF 156-709
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
12992849
Correspondence name and address
SUGHRUE MION, PLLC
2100 PENNSYLVANIA AVENUE, N.W.
SUITE 800
WASHINGTON, DC 20037
Assignment: 15
Reel/Frame:026356/0381   Pages: 2
Recorded: 05/28/2011
Attorney Dkt #:KIM22
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
04/25/2011
2
Exec Dt:
04/25/2011
3
Exec Dt:
04/25/2011
4
Exec Dt:
04/25/2011
Assignee
1
#370-1, SINDAEBANG-DONG
DONGIAK-GU
SEOUL, KOREA, REPUBLIC OF 156-709
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
13127109
Correspondence name and address
BROWDY AND NEIMARK, PLLC
1625 K STREET NW
SUITE # 1100
WASHINGTON, DC 20006
Assignment: 16
Reel/Frame:026923/0485   Pages: 4
Recorded: 09/16/2011
Attorney Dkt #:KIM22
Conveyance: CORRECTIVE ASSIGNMENT TO CORRECT THE ERRORS IN THE ASSIGNEE'S ADDRESS PREVIOUSLY RECORDED ON REEL 026356 FRAME 0381. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNEE'S ADDRESS SHOULD READ: #370-1, SINDAEBANG-DONG, DONGJAK-GU, SEOUL 156-709, REPUBLIC OF KOREA.
Assignors
1
Exec Dt:
04/25/2011
2
Exec Dt:
04/25/2011
3
Exec Dt:
04/25/2011
4
Exec Dt:
04/25/2011
Assignee
1
#370-1, SINDAEBANG-DONG, DONGJAK-GU
SEOUL, KOREA, REPUBLIC OF 156-709
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
13127109
Correspondence name and address
BROWDY AND NEIMARK, PLLC
1625 K STREET NW
SUITE # 1100
WASHINGTON, DC 20006
Assignment: 17
Reel/Frame:027885/0434   Pages: 3
Recorded: 03/19/2012
Attorney Dkt #:Q129846
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
03/08/2012
2
Exec Dt:
03/06/2012
3
Exec Dt:
03/08/2012
4
Exec Dt:
03/06/2012
5
Exec Dt:
03/08/2012
6
Exec Dt:
03/06/2012
7
Exec Dt:
03/08/2012
Assignee
1
#370-1, SINDAEBANG-DONG, DONGJAK-GU
SEOUL, KOREA, REPUBLIC OF 156-709
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
13496927
Correspondence name and address
SUGHRUE MION PLLC
2100 PENNSYLVANIA AVE NW
SUITE 800
WASHINGTON, DC 20037
Assignment: 18
Reel/Frame:030650/0440   Pages: 3
Recorded: 06/20/2013
Attorney Dkt #:Q204878
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
06/12/2013
2
Exec Dt:
06/12/2013
3
Exec Dt:
06/12/2013
4
Exec Dt:
06/12/2013
5
Exec Dt:
06/12/2013
Assignee
1
#370-1, SINDAEBANG-DONG
DONGJAK-GU, SEOUL, KOREA, REPUBLIC OF 156-709
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
13995397
Correspondence name and address
SUGHRUE MION PLLC
2100 PENNSYLVANIA AVE NW
SUITE 800
WASHINGTON, DC 20037
Assignment: 19
Reel/Frame:031437/0544   Pages: 2
Recorded: 10/18/2013
Attorney Dkt #:Q207677
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
10/09/2013
2
Exec Dt:
10/09/2013
3
Exec Dt:
10/09/2013
4
Exec Dt:
10/09/2013
Assignee
1
#370-1, SINDAEBANG-DONG, DONGJAK-GU
SEOUL, KOREA, REPUBLIC OF 156-709
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
14112781
Correspondence name and address
DARRYL HUNTER
2100 PENNSYLVANIA AVENUE NW
WASHINGTON, DC 20037
Assignment: 20
Reel/Frame:031523/0712   Pages: 2
Recorded: 10/31/2013
Attorney Dkt #:Q207986
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
10/14/2013
2
Exec Dt:
10/14/2013
Assignee
1
#370-1, SINDAEBANG-DONG, DONGJAK-GU
SEOUL, KOREA, REPUBLIC OF 156-709
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
14115012
Correspondence name and address
DARRYL HUNTER
2100 PENNSYLVANIA AVENUE NW
WASHINGTON, DC 20037
Assignment: 21
Reel/Frame:031570/0822   Pages: 3
Recorded: 11/08/2013
Attorney Dkt #:Q208139
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
10/29/2013
2
Exec Dt:
10/29/2013
3
Exec Dt:
10/29/2013
Assignee
1
#370-1, SINDAEBANG-DONG
DONGJAK-GU
SEOUL, KOREA, REPUBLIC OF 156-709
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
14116624
Correspondence name and address
SUGHRUE MION, PLLC
2100 PENNSYLVANIA AVENUE, N.W.
SUITE 800
WASHINGTON, DC 20037
Assignment: 22
Reel/Frame:031938/0938   Pages: 4
Recorded: 01/10/2014
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
Exec Dt:
01/08/2014
Assignee
1
#370-1, SINDAEBANG-DONG, DONGJAK-GU
SEOUL, KOREA, REPUBLIC OF 156-709
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
14132000
Correspondence name and address
THE WEBB LAW FIRM, P.C.
ONE GATEWAY CENTER
420 FT. DUQUESNE BLVD, SUITE 1200
PITTSBURGH, PA 15222
Assignment: 23
Reel/Frame:032486/0045   Pages: 4
Recorded: 03/20/2014
Attorney Dkt #:5038-140722
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
Exec Dt:
02/10/2014
Assignee
1
370-1, SINDAEBANG-DONG, DONGJAK-GU
SEOUL, KOREA, REPUBLIC OF 156-709
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
14346073
Correspondence name and address
THE WEBB LAW FIRM, P.C.
ONE GATEWAY CENTER
420 FT. DUQUESNE BLVD, SUITE 1200
PITTSBURGH, PA 15222

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