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Patent Assignment Assignor Details
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Assignor Name : DOUGHTY, DAVID T.
Total Assignments: 9
Assignment: 1
Reel/Frame:004544/0426   Pages: 2
Recorded: 05/12/1986
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
HARLEY, A. DALE
Exec Dt:
03/16/1984
2
CURNUTT, JERALD L.
Exec Dt:
03/16/1984
3
DOUGHTY, DAVID T.
Exec Dt:
03/16/1984
Assignee
1
DOW CHEMICAL COMPANY THE
STATELESS
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4604242
NONE
06590596
Correspondence name and address
RICHARD G. WATERMAN
P. O. BOX 1967
MIDLAND, MI 48640
Assignment: 2
Reel/Frame:005691/0446   Pages: 4
Recorded: 05/02/1991
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
DOUGHTY, DAVID T.
Exec Dt:
04/26/1991
2
GROOSE, JAMES E.
Exec Dt:
04/26/1991
Assignee
1
CALGON CARBON CORPORATION
500 CALGON CARBON DRIVE
PITTSBURGH, PENNSYLVANIA 15205
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5063196
NONE
07371430
Correspondence name and address
THOMAS C. WETTACH
P.O. BOX 2009
PITTSBURGH, PA 15230
Assignment: 3
Reel/Frame:007024/0467   Pages: 3
Recorded: 06/02/1994
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DOUGHTY, DAVID T.
Exec Dt:
06/01/1994
2
HAYDEN, RICHARD A.
Exec Dt:
06/01/1994
3
COBES, JOHN W., III
Exec Dt:
06/01/1994
4
MATVIYA, THOMAS M.
Exec Dt:
06/01/1994
Assignee
1
CALGON CARBON CORPORATION
500 CALGON CARBON DRIVE
PITTSBURGH, PENNSYLVANIA 15205
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5700436
NONE
08252699
Correspondence name and address
CINDRICH, & TITUS
THOMAS C. WETTACH
FOUR GATEWAY CENTER
20TH FLOOR
PITTSBURGH, PA 15222
Assignment: 4
Reel/Frame:008057/0226   Pages: 4
Recorded: 05/24/1996
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DOUGHTY, DAVID T.
Exec Dt:
05/20/1996
2
COBES, JOHN W.
Exec Dt:
05/20/1996
3
HAYDEN, RICHARD A.
Exec Dt:
05/20/1996
4
MATVIYA, THOMAS M.
Exec Dt:
05/20/1996
Assignee
1
CALGON CARBON CORPORATION
500 CALGON CARBON DRIVE
PITTSBURGH, PENNSYLVANIA 15205
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5733515
NONE
08608272
Correspondence name and address
TITUS & MCCONAMY
THOMAS C. WETTACH
20TH FLOOR
FOUR GATEWAY CENTER
PITTSBUGH, PA 15222
Assignment: 5
Reel/Frame:008909/0922   Pages: 4
Recorded: 01/21/1998
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DOUGHTY, DAVID T.
Exec Dt:
01/08/1998
2
GREENBANK, MICHAEL
Exec Dt:
01/08/1998
Assignee
1
CALGON CARBON CORPORATION
500 CALGON CARBON DRIVE
PITTSBURGH, PENNSYLVANIA 15205
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5912423
NONE
08787867
Correspondence name and address
TITUS & MCCONOMY
THOMAS C. WETTACH
FOUR GATEWAY CENTER, 20TH FLOOR
PITTSBURGH, PENNSYLVANIA 15222
Assignment: 6
Reel/Frame:015131/0843   Pages: 3
Recorded: 03/23/2004
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DOUGHTY, DAVID T.
Exec Dt:
03/22/2004
2
COBES III, JOHN W.
Exec Dt:
03/21/2004
Assignee
1
CALGON CALGON CORPORATION
500 CALGON CARBON DRIVE
PITTSBURGH, PENNSYLVANIA 15205
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20050211099
10807375
Correspondence name and address
COHEN & GRIGSBY, P.C.
CHRISTINE W. TREBILCOCK
11 STANWIX STREET, 15TH FLOOR
PITTSBURGH, PA 15222
Assignment: 7
Reel/Frame:037770/0982   Pages: 10
Recorded: 02/18/2016
Attorney Dkt #:123450.11101
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
MCNAMARA, GINA L.
Exec Dt:
11/21/2014
2
DOUGHTY, DAVID T.
Exec Dt:
11/21/2014
Assignee
1
CALGON CARBON CORPORATION
3000 GSK DRIVE
MOON TOWNSHIP, PENNSYLVANIA 15108
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10279333
US20160236169
14992554
Correspondence name and address
PEPPER HAMILTON LLP
500 GRANT STREET
SUITE 5000
PITTSBURGH, PA 15219-2507
Assignment: 8
Reel/Frame:050168/0756   Pages: 10
Recorded: 08/26/2019
Attorney Dkt #:123450.11111
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DOUGHTY, DAVID T.
Exec Dt:
01/29/2016
2
MCNAMARA, GINA L.
Exec Dt:
01/28/2016
Assignee
1
CALGON CARBON CORPORATION
3000 GSK DRIVE
MOON TOWNSHIP, PENNSYLVANIA 15108
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11648528
US20190210001
16356640
Correspondence name and address
PEPPER HAMILTON LLP
501 GRANT STREET, SUITE 300
UNION TRUST BUILDING
PITTSBURGH, PA 15219-4429
Assignment: 9
Reel/Frame:051715/0850   Pages: 6
Recorded: 02/04/2020
Attorney Dkt #:123450.12810,12801,12802
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
DOUGHTY, DAVID T.
Exec Dt:
02/03/2020
Assignee
1
CALGON CARBON CORPORATION
3000 GSK DRIVE
MOON TOWNSHIP, PENNSYLVANIA 15108
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11697090
US20200038798
16530795
Correspondence name and address
PEPPER HAMILTON LLP
UNION TRUST BUILDING
501 GRANT STREET, SUITE 300
PITTSBURGH, PA 15219-4429

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