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Patent Assignment Assignor Details
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Assignor Name : VAN LEEUWEN, PETRUS W. N. M.
Total Assignments: 12
Assignment: 1
Reel/Frame:004145/0950   Pages: 1
Recorded: 07/11/1983
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
VAN LEEUWEN, PETRUS W. N. M.
Exec Dt:
06/17/1982
2
ROOBEEK, CORNELIS F.
Exec Dt:
06/17/1982
Assignee
1
SHELL OIL COMPANY
A DEL CORP.
NOT PROVIDED
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4408078
NONE
06399161
Correspondence name and address
RONALD L. CLENDENEN
SHELL DEV., CO., PATS. & LICENSING DIV.
P. O. BOX 2463
HOUSTON, TX 77001
Assignment: 2
Reel/Frame:004265/0505   Pages: 1
Recorded: 06/11/1984
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
DRENT, EIT
Exec Dt:
10/03/1983
2
VAN LEEUWEN, PETRUS W. N. M.
Exec Dt:
10/03/1983
Assignee
1
SHELL OIL COMPANY, A CORP. OF DE
HOUSTON, TEXAS 77001
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4474978
NONE
06542805
Correspondence name and address
RONALD L. CLENDENEN
SHELL DEV. CO., PATENTS & LICENSING DIV.
P. O. BOX 2463
HOUSTON, TX 77001
Assignment: 3
Reel/Frame:004467/0672   Pages: 1
Recorded: 10/21/1985
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
WIFE, RICHARD L.
Exec Dt:
12/12/1983
2
VAN OORT, AART B.
Exec Dt:
12/12/1983
3
VAN LEEUWEN, PETRUS W. N. M.
Exec Dt:
12/12/1983
4
VAN DOORN, JOHANNES A.
Exec Dt:
12/12/1983
Assignee
1
SHELL OIL COMPANY A DE CORP
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4565892
NONE
06562620
Correspondence name and address
RONALD R. REPER
SHELL DEV. CO., LICENSING & PAT. DIV.
P.O. BOX 2463
HOUSTON, TX 77001
Assignment: 4
Reel/Frame:004670/0912   Pages: 1
Recorded: 02/05/1987
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor
1
VAN LEEUWEN, PETRUS W. N. M.
Exec Dt:
02/02/1987
Assignee
1
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V., A COMPANY OF NETHERLANDS
CAREL VAN BYLANDTLAAN 30
THE HAGUE, NETHERLANDS
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4795508
NONE
07011474
Correspondence name and address
JONES, TULLAR & COOPER
P.O. BOX 2266
EADS STATION
ARLINGTON, VA 22202
Assignment: 5
Reel/Frame:005060/0394   Pages: 1
Recorded: 02/27/1989
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
DRENT, EIT
Exec Dt:
07/28/1987
2
WIFE, RICHARD L.
Exec Dt:
07/28/1987
3
VAN LEEUWEN, PETRUS W. N. M.
Exec Dt:
07/28/1987
Assignee
1
SHELL OIL COMPANY, A DE CORP.
STATELESS
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4859764
NONE
07088169
Correspondence name and address
MARK K. DICKSON
C/O SHELL OIL COMPANY
PATENTS & LICENSING
P.O. BOX 2463
HOUSTON, TX 77252-2463
Assignment: 6
Reel/Frame:005008/0950   Pages: 1
Recorded: 01/17/1989
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
DRENT, EIT
Exec Dt:
11/26/1987
2
WIFE, RICHARD L.
Exec Dt:
11/26/1987
3
VAN LEEUWEN, PETRUS W. N. M.
Exec Dt:
11/26/1987
Assignee
1
SHELL OIL COMPANY, A DE CORP.
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4820802
NONE
07135427
Correspondence name and address
MARK K. DICKSON
SHELL OIL CO.
PATENTS AND LICENSING
P. O. BOX 2463
HOUSTON, TX 77252-2463
Assignment: 7
Reel/Frame:005539/0414   Pages: 2
Recorded: 12/10/1990
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
VAN LEEUWEN, PETRUS W. N. M.
Exec Dt:
08/22/1989
2
ROOBEEK, CORNELIS F.
Exec Dt:
08/22/1989
Assignee
1
SHELL OIL COMPANY, A CORP. OF DELAWARE
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5004844
NONE
07372577
Correspondence name and address
RICHARD F. LEMUTH
C/O SHELL OIL COMPANY
PATENTS & LICENSING
P. O. BOX 2463
HOUSTON, TX 77252-2463
Assignment: 8
Reel/Frame:005578/0740   Pages: 2
Recorded: 01/28/1991
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
VAN LEEUWEN, PETRUS W. N. M.
Exec Dt:
12/08/1989
2
ROOBEEK, CORNELIS F.
Exec Dt:
12/08/1989
Assignee
1
SHELL OIL COMPANY, A CORP. OF DE
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5010172
NONE
07458251
Correspondence name and address
DEAN F. VANCE
C/O SHELL OIL COMPANY
PATENTS AND LICENSING
P. O. BOX 2463
HOUSTON, TX 77252-2463
Assignment: 9
Reel/Frame:005657/0745   Pages: 2
Recorded: 04/08/1991
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
VAN LEEUWEN, PETRUS W. N. M.
Exec Dt:
01/05/1990
2
ROOBEEK, CORNELIS F.
Exec Dt:
01/05/1990
Assignee
1
SHELL OIL COMPANY, A CORP. OF DELAWARE
HOUSTON, TEXAS 77252-2463
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5025091
NONE
07466559
Correspondence name and address
SHELL OIL COMPANY
PATENTS AND LICENSING
P.O. BOX 2463
HOUSTON, TX 77252-2463
Assignment: 10
Reel/Frame:005774/0441   Pages: 2
Recorded: 07/22/1991
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
VAN LEEUWEN, PETRUS W. N. M.
Exec Dt:
01/10/1990
2
ROOBEEK, CORNELIS F.
Exec Dt:
02/01/1990
3
WONG, PUI K.
Exec Dt:
02/01/1990
Assignee
1
SHELL OIL COMPANY
A CORPORATION OF DE
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5066777
NONE
07474959
Correspondence name and address
SHELL OIL COMPANY
PATENTS AND LICENSING P.O. BOX 2463
HOUSTON, TEXAS 77252-2463
Assignment: 11
Reel/Frame:005906/0884   Pages: 2
Recorded: 11/14/1991
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
VAN LEEUWEN, PETRUS W. N. M.
Exec Dt:
03/21/1990
2
ROOBEEK, CORNELIS F.
Exec Dt:
03/21/1990
3
WONG, PUI K.
Exec Dt:
04/12/1990
Assignee
1
SHELL OIL COMPANY
A CORP. OF DELAWARE
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5091507
NONE
07509845
Correspondence name and address
DEAN F. VANCE
C/O SHELL OIL COMPANY
PATENTS AND LICENSING
PO BOX 2463
HOUSTON, TX 77252-2463
Assignment: 12
Reel/Frame:006248/0255   Pages: 2
Recorded: 08/31/1992
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
KEIJSPER, JOHANNES J.
Exec Dt:
05/22/1991
2
VAN DER MADE, ALEXANDER W.
Exec Dt:
05/22/1991
3
VAN LEEUWEN, PETRUS W. N. M.
Exec Dt:
05/22/1991
Assignee
1
SHELL OIL COMPANY, A CORP. OF DE
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5169926
NONE
07684110
Correspondence name and address
DENISE Y. WOLFS
C/O SHELL OIL CO.
PATENTS AND LICENSING
P.O. BOX 2463
HOUSTON, TX 77252-2463

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