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Patent Assignment Abstract of Title
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Total Assignments: 29
Patent #:
6887822
Issue Dt:
05/03/2005
Application #:
09964177
Filing Dt:
09/25/2001
Publication #:
20030069130
Pub Dt:
04/10/2003
Inventor:
Yatao Hu
Title:
METHOD FOR MAKING SILICA SUPPORTED, CRUSH-RESISTANT CATALYSTS
Assignment: 1
Reel/Frame:
012209/0386Recorded: 09/25/2001Pages: 3
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor:
HU, YATAO
Exec Dt:
09/20/2001
Assignee:
PQ CORPORATION
1200 W. SWEDESFORD ROAD
BERWYN, PENNSYLVANIA 19312
Correspondent:
RATNER & PRESTIA
CHRISTOPHER R. LEWIS
SUITE 301, ONE WESTLAKES, BERWYN
P.O. BOX 980
VALLEY FORGE, PA 19482-0980
Assignment: 2
Reel/Frame:
012476/0199Recorded: 01/10/2002Pages: 3
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor:
PQ CORPORATION
Exec Dt:
11/05/2001
Assignee:
PQ HOLDING, INC
103 SPRINGER BUILDING, 3411 SILVERSID RD.
WILMINGTON, DELAWARE 19810
Correspondent:
RATNER & PRESTIA
CHRISTOPHER R. LEWIS
SUITE 301,ONE WESTLAKES, BERWYN,
VALLEY FORGE, PA 19482-0980
Assignment: 3
Reel/Frame:
013491/0285Recorded: 11/18/2002Pages: 3
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor:
PQ HOLDING, INC.
Exec Dt:
11/01/2002
Assignee:
PQ CORPORATION
1200 W. SWEDESFORD ROAD
BERWYN, PENNSYLVANIA 19312
Correspondent:
RATNERPRESTIA
CHRISTOPHER R. LEWIS
SUITE 301, ONE WESTLAKES, BERWYN
P.O. BOX 980
VALLEY FORGE, PA 19482-0980
Assignment: 4
Reel/Frame:
015829/0674Recorded: 03/29/2005Pages: 10
Conveyance:
SECURITY AGREEMENT
Assignor:
PQ CORPORATION
Exec Dt:
03/11/2005
Assignee:
UBS AG, STAMFORD BRANCH, AS ADMINISTRATIVE AGENT
677 WASHINGTON BOULEVARD
STAMFORD, CONNECTICUT 06901
Correspondent:
ROBYN RAHBAR, ESQ
SIMPSON THACHER & BARTLETT LLP
425 LEXINGTON AVENUE
NEW YORK, NY 10017
Assignment: 5
Reel/Frame:
019767/0556Recorded: 08/30/2007Pages: 12
Conveyance:
FIRST LIEN GRANT OF SECURITY INTEREST IN PATENTS
Assignor:
PQ CORPORATION
Exec Dt:
07/30/2007
Assignee:
UBS AG, STAMFORD BRANCH
677 WASHINGTON BOULEVARD
STAMFORD, CONNECTICUT 06901
Correspondent:
TERESA HU
525 UNIVERSITY DRIVE, SUITE 1100
PALO ALTO, CA 94301
Assignment: 6
Reel/Frame:
019767/0568Recorded: 08/30/2007Pages: 12
Conveyance:
SECOND LIEN GRANT OF SECURITY INTEREST IN PATENTS
Assignor:
PQ CORPORATION
Exec Dt:
07/30/2007
Assignee:
UBS AG, STAMFORD BRANCH
677 WASHINGTON BOULEVARD
STAMFORD, CONNECTICUT 06901
Correspondent:
TERESA HU
525 UNIVERSITY DRIVE, SUITE 1100
PALO ALTO, CA 94301
Assignment: 7
Reel/Frame:
019910/0678Recorded: 10/03/2007Pages: 10
Conveyance:
TERMINATION AND RELEASE OF SECURITY INTEREST IN INTELLECTUAL PROPERTY
Assignor:
UBS AG, STAMFORD BRANCH
Exec Dt:
07/30/2007
Assignee:
PQ CORPORATION
1200 WEST SWEDESFORD ROAD
BERWYN, PENNSYLVANIA 19312
Correspondent:
TERESA HU
525 UNIVERSITY AVENUE
PALO ALTO, CA 94301
Assignment: 8
Reel/Frame:
027980/0194Recorded: 04/03/2012Pages: 13
Conveyance:
FIRST LIEN GRANT OF SECURITY INTEREST IN PATENTS AMENDMENT NO. 1
Assignor:
PQ CORPORATION
Exec Dt:
04/02/2012
Assignee:
CREDIT SUISSE AG, AS SUCCESSOR AGENT
ELEVEN MADISON AVENUE
NEW YORK, NEW YORK 10010
Correspondent:
JESSICA LEHRMAN, ESQ.
919 THIRD AVENUE
DEBEVOISE & PLIMPTON LLP
NEW YORK, NY 10022
Assignment: 9
Reel/Frame:
027980/0219Recorded: 04/03/2012Pages: 13
Conveyance:
SECOND LIEN GRANT OF SECURITY INTEREST IN PATENTS AMENDMENT NO. 1
Assignor:
PQ CORPORATION
Exec Dt:
04/02/2012
Assignee:
CREDIT SUISSE AG, AS SUCCESSOR AGENT
ELEVEN MADISON AVENUE
NEW YORK, NEW YORK 10010
Correspondent:
JESSICA LEHRMAN, ESQ.
919 THIRD AVENUE
DEBEVOISE & PLIMPTON LLP
NEW YORK, NY 10022
Assignment: 10
Reel/Frame:
029349/0556Recorded: 11/26/2012Pages: 12
Conveyance:
RELEASE OF SECURITY INTEREST IN PATENTS
Assignor:
CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH
Exec Dt:
11/08/2012
Assignee:
PQ CORPORATION
300 LINDENWOOD DRIVE, VALLEYBROOKE CORPORATE CENTER
MALVERN, PENNSYLVANIA 19355
Correspondent:
IP RESEARCH PLUS, INC.
21 TADCASTER CIRCLE
ATTN: PENELOPE J.A. AGODOA
WALDORF, MD 20602
Assignment: 11
Reel/Frame:
029349/0592Recorded: 11/26/2012Pages: 11
Conveyance:
RELEASE OF SECURITY INTEREST IN PATENTS
Assignor:
CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH
Exec Dt:
11/08/2012
Assignee:
PQ CORPORATION
300 LINDENWOOD DRIVE, VALLEYBROOKE CORPORATE CENTER
MALVERN, PENNSYLVANIA 19355
Correspondent:
IP RESEARCH PLUS, INC.
21 TADCASTER CIRCLE
ATTN: PENELOPE J.A. AGODOA
WALDORF, MD 20602
Assignment: 12
Reel/Frame:
029370/0103Recorded: 11/29/2012Pages: 15
Conveyance:
SECURITY AGREEMENT
Assignors:
PQ CORPORATION
Exec Dt:
11/08/2012
POTTERS INDUSTRIES, LLC
Exec Dt:
11/08/2012
Assignee:
CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH, AS ADMINISTRATIVE AGENT
11 MADISON AVENUE
NEW YORK, NEW YORK 10010
Correspondent:
IP RESEARCH PLUS, INC.
21 TADCASTER CIRCLE
ATTN: PENELOPE J.A. AGODOA
WALDORF, MD 20602
Assignment: 13
Reel/Frame:
029377/0878Recorded: 11/30/2012Pages: 15
Conveyance:
SECURITY AGREEMENT
Assignors:
PQ CORPORATION
Exec Dt:
11/08/2012
POTTERS INDUSTRIES, LLC
Exec Dt:
11/08/2012
Assignee:
WILMINGTON TRUST, NATIONAL ASSOCIATION, AS ADMINISTRATIVE AGENT
RODNEY SQUARE NORTH, 1100 N. MARKET STREET
WILMINGTON, DELAWARE 19890
Correspondent:
IP RESEARCH PLUS, INC.
21 TADCASTER CIRCLE
ATTN: PENELOPE J.A. AGODOA
WALDORF, MD 20602
Assignment: 14
Reel/Frame:
038612/0222Recorded: 05/05/2016Pages: 12
Conveyance:
RELEASE BY SECURED PARTY (SEE DOCUMENT FOR DETAILS).
Assignor:
CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH, AS ADMINISTRATIVE AGENT
Exec Dt:
05/04/2016
Assignees:
PQ CORPORATION
300 LINDENWOOD DRIVE, VALLEYBROOKE CORPORATE CENTER
MALVERN, PENNSYLVANIA 19355
POTTERS INDUSTRIES, LLC
300 LINDENWOOD DRIVE, VALLEYBROOKE CORPORATE CENTER
MALVERN, PENNSYLVANIA 19355
Correspondent:
IP RESEARCH PLUS, INC.
21 TADCASTER CIRCLE
ATTN: PENELOPE J.A. AGODOA
WALDORF, MD 20602
Assignment: 15
Reel/Frame:
038611/0927Recorded: 05/04/2016Pages: 17
Conveyance:
RELEASE BY SECURED PARTY (SEE DOCUMENT FOR DETAILS).
Assignor:
WILMINGTON TRUST, NATIONAL ASSOCIATION, AS ADMINISTRATIVE AGENT
Exec Dt:
05/04/2016
Assignees:
PQ CORPORATION
300 LINDENWOOD DRIVE
MALVERN, PENNSYLVANIA 19355
POTTERS INDUSTRIES, LLC
300 LINDENWOOD DRIVE
MALVERN, PENNSYLVANIA 19355
Correspondent:
LATHAM & WATKINS LLP
650 TOWN CENTER DRIVE, SUITE 2000
COSTA MESA, CA 92626
Assignment: 16
Reel/Frame:
038860/0012Recorded: 06/01/2016Pages: 12
Conveyance:
PATENT SECURITY AGREEMENT (NOTES)
Assignor:
PQ CORPORATION
Exec Dt:
05/04/2016
Assignee:
WELLS FARGO BANK, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
150 EAST 42ND STREET, 40TH FLOOR
NEW YORK, NEW YORK 10017
Correspondent:
LATHAM & WATKINS LLP
650 TOWN CENTER DRIVE, SUITE 2000
COSTA MESA, CA 92626
Assignment: 17
Reel/Frame:
038860/0900Recorded: 06/01/2016Pages: 12
Conveyance:
PATENT SECURITY AGREEMENT (TERM)
Assignor:
PQ CORPORATION
Exec Dt:
05/04/2016
Assignee:
CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH, AS COLLATERAL AGENT
ELEVEN MADISON AVENUE
NEW YORK, NEW YORK 10010
Correspondent:
LATHAM & WATKINS LLP
650 TOWN CENTER DRIVE, SUITE 2000
COSTA MESA, CA 92626
Assignment: 18
Reel/Frame:
038861/0071Recorded: 06/01/2016Pages: 12
Conveyance:
PATENT SECURITY AGREEMENT (ABL)
Assignor:
PQ CORPORATION
Exec Dt:
05/04/2016
Assignee:
CITIBANK, N.A., AS COLLATERAL AGENT
390 GREENWICH ST.
NEW YORK, NEW YORK 10013
Correspondent:
LATHAM & WATKINS LLP
650 TOWN CENTER DRIVE, SUITE 2000
COSTA MESA, CA 92626
Assignment: 19
Reel/Frame:
053281/0474Recorded: 07/22/2020Pages: 10
Conveyance:
SECURITY INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor:
PQ CORPORATION
Exec Dt:
07/22/2020
Assignee:
CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH, AS COLLATERAL AGENT
11 MADISON AVENUE
NEW YORK, NEW YORK 10010
Correspondent:
LATHAM & WATKINS LLP, C/O JESSICA BAJADA-SILVA
885 THIRD AVE
NEW YORK, NY 10022
Assignment: 20
Reel/Frame:
053281/0616Recorded: 07/22/2020Pages: 11
Conveyance:
RELEASE OF SECURITY INTEREST AT R/F 38860/0012
Assignor:
WELLS FARGO BANK, N.A., AS COLLATERAL AGENT
Exec Dt:
07/22/2020
Assignee:
PQ CORPORATION
300 LINDENWOOD DRIVE
MALVERN, PENNSYLVANIA 19355
Correspondent:
LATHAM & WATKINS LLP, C/O JESSICA BAJADA-SILVA
885 THIRD AVE
NEW YORK, NY 10022
Assignment: 21
Reel/Frame:
056539/0782Recorded: 06/10/2021Pages: 8
Conveyance:
RELEASE OF SECURITY INTEREST IN PATENTS AT R/F 053281/0474
Assignor:
CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH, AS COLLATERAL AGENT
Exec Dt:
06/09/2021
Assignee:
PQ CORPORATION
300 LINDENWOOD DRIVE
VALLEYBROOKE CORPORATE CENTER
MALVERN, PENNSYLVANIA 19355
Correspondent:
LATHAM & WATKINS LLP, C/O JESSICA BAJADA
1271 AVENUE OF THE AMERICAS
NEW YORK, NY 10020
Assignment: 22
Reel/Frame:
056539/0903Recorded: 06/10/2021Pages: 12
Conveyance:
TERM LOAN PATENT SECURITY AGREEMENT
Assignor:
PQ CORPORATION
Exec Dt:
06/09/2021
Assignee:
CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH, AS AGENT
ELEVEN MADISON AVENUE
NEW YORK, NEW YORK 10010
Correspondent:
LATHAM & WATKINS LLP, C/O JESSICA BAJADA
1271 AVENUE OF THE AMERICAS
NEW YORK, NY 10020
Assignment: 23
Reel/Frame:
057140/0261Recorded: 08/03/2021Pages: 35
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor:
PQ CORPORATION
Exec Dt:
07/29/2021
Assignee:
ECOVYST CATALYST TECHNOLOGIES LLC
300 LINDENWOOD DRIVE
MALVERN, PENNSYLVANIA 19355
Correspondent:
MICHAEL L. DEVER
501 GRANT STREET
SUITE 200
PITTSBURGH, PA 15219
Assignment: 24
Reel/Frame:
057089/0255Recorded: 08/05/2021Pages: 8
Conveyance:
PARTIAL RELEASE OF SECURITY INTEREST IN PATENTS RECORDED AT R/F 056539/0903
Assignor:
CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH, AS ADMINISTRATIVE AGENT
Exec Dt:
08/02/2021
Assignee:
PQ CORPORATION
300 LINDENWOOD DRIVE
MALVERN, PENNSYLVANIA 19355-1740
Correspondent:
LATHAM & WATKINS LLP C/O ANGELA M. AMARU
1271 AVENUE OF THE AMERICAS
NEW YORK, NY 10020
Assignment: 25
Reel/Frame:
057089/0345Recorded: 08/05/2021Pages: 7
Conveyance:
PARTIAL RELEASE OF SECURITY INTEREST IN PATENTS RECORDED AT R/F 038861/0071
Assignor:
CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH, AS COLLATERAL AGENT
Exec Dt:
08/02/2021
Assignee:
PQ CORPORATION
300 LINDENWOOD DRIVE
MALVERN, PENNSYLVANIA 19355-1740
Correspondent:
LATHAM & WATKINS LLP C/O ANGELA M. AMARU
1271 AVENUE OF THE AMERICAS
NEW YORK, NY 10020
Assignment: 26
Reel/Frame:
057089/0382Recorded: 08/05/2021Pages: 10
Conveyance:
RELEASE OF SECURITY INTEREST IN PATENTS RECORDED AT R/F 038860/0900
Assignor:
CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH, AS ADMINISTRATIVE AGENT
Exec Dt:
08/02/2021
Assignee:
PQ CORPORATION
300 LINDENWOOD DRIVE
MALVERN, PENNSYLVANIA 19355-1740
Correspondent:
LATHAM & WATKINS LLP C/O ANGELA M. AMARU
1271 AVENUE OF THE AMERICAS
NEW YORK, NY 10020
Assignment: 27
Reel/Frame:
057109/0688Recorded: 08/06/2021Pages: 9
Conveyance:
CORRECTIVE ASSIGNMENT TO CORRECT THE CONVEYING PARTY NAME PREVIOUSLY RECORDED AT REEL: 057089 FRAME: 0345. ASSIGNOR(S) HEREBY CONFIRMS THE RELEASE OF SECURITY INTEREST.
Assignor:
CITIBANK, N.A., AS COLLATERAL AGENT
Exec Dt:
08/02/2021
Assignee:
PQ CORPORATION
300 LINDENWOOD DRIVE
MALVERN, PENNSYLVANIA 19355-1740
Correspondent:
LATHAM & WATKINS LLP C/O ANGELA M. AMARU
1271 AVENUE OF THE AMERICAS
NEW YORK, NY 10020
Assignment: 28
Reel/Frame:
057182/0449Recorded: 08/13/2021Pages: 9
Conveyance:
ABL PATENT SECURITY AGREEMENT
Assignor:
ECOVYST CATALYST TECHNOLOGIES LLC
Exec Dt:
08/12/2021
Assignee:
CITIBANK, N.A., AS AGENT
390 GREENWICH STREET
NEW YORK, NEW YORK 10013
Correspondent:
LATHAM & WATKINS LLP C/O ANGELA M. AMARU
1271 AVENUE OF THE AMERICAS
NEW YORK, NY 10020
Assignment: 29
Reel/Frame:
057182/0552Recorded: 08/13/2021Pages: 9
Conveyance:
TERM LOAN PATENT SECURITY AGREEMENT
Assignor:
ECOVYST CATALYST TECHNOLOGIES LLC
Exec Dt:
08/12/2021
Assignee:
CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH, AS ADMINISTRATIVE AGENT
11 MADISON AVENUE
NEW YORK, NEW YORK 10010
Correspondent:
LATHAM & WATKINS LLP C/O ANGELA M. AMARU
1271 AVENUE OF THE AMERICAS
NEW YORK, NY 10020

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