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

Reel/Frame:007526/0454   Pages: 4
Recorded: 05/26/1995
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Total properties: 45
1
Patent #:
4719246
Issue Dt:
01/12/1988
Application #:
06944588
Filing Dt:
12/22/1986
Title:
POLYLACTIDE COMPOSITIONS
2
Patent #:
4835293
Issue Dt:
05/30/1989
Application #:
07017418
Filing Dt:
02/24/1987
Title:
ATMOSPHERIC PRESSURE PROCESS FOR PREPARING PURE CYCLIC ESTERS
3
Patent #:
5028667
Issue Dt:
07/02/1991
Application #:
07414964
Filing Dt:
09/29/1989
Title:
YTTRIUM AND RARE EARTH COMPOUNDS CATALYZED LACTONE POLYMERIZATION
4
Patent #:
5023349
Issue Dt:
06/11/1991
Application #:
07520348
Filing Dt:
05/08/1990
Title:
CONTINUOUS PROCESS FOR RAPID CONVERSION OF OLIGOMERS TO CYCLIC ESTERS
5
Patent #:
5043458
Issue Dt:
08/27/1991
Application #:
07521063
Filing Dt:
05/03/1990
Title:
ONE-STEP CONTINUOUS PROCESS FOR PREPARING CYCLIC ESTERS
6
Patent #:
5023350
Issue Dt:
06/11/1991
Application #:
07528632
Filing Dt:
05/24/1990
Title:
PROCESS FOR THE PURIFICATION OF CYCLIC ESTERS
7
Patent #:
5138074
Issue Dt:
08/11/1992
Application #:
07545379
Filing Dt:
06/28/1990
Title:
CONTINUOUS CATALYZED VAPOR PHASE DIMERIC CYCLIC ESTER PROCESS
8
Patent #:
5076983
Issue Dt:
12/31/1991
Application #:
07552551
Filing Dt:
07/16/1990
Title:
POLYHYDROXY ACID FILMS
9
Patent #:
5091544
Issue Dt:
02/25/1992
Application #:
07586157
Filing Dt:
09/21/1990
Title:
PROCESS FOR RAPID CONVERSION OF OLIGOMERS TO CYCLIC ESTERS
10
Patent #:
5117008
Issue Dt:
05/26/1992
Application #:
07602346
Filing Dt:
10/23/1990
Title:
SOLVENT SCRUBBING RECOVERY OF LACTIDE AND OTHER DIMERIC CYCLIC ESTERS
11
Patent #:
5179232
Issue Dt:
01/12/1993
Application #:
07631109
Filing Dt:
12/19/1990
Title:
PROCESS FOR SOLUBILIZING FORMALDEHYDE OLIGOMERS
12
Patent #:
5089632
Issue Dt:
02/18/1992
Application #:
07648003
Filing Dt:
01/30/1991
Title:
PROCESS FOR PREPARING CYCLIC ESTERS USING A FLUOROCARBON
13
Patent #:
5095098
Issue Dt:
03/10/1992
Application #:
07680165
Filing Dt:
04/03/1991
Title:
YTTRIUM AND RARE EARTH COMPOUNDS CATALYZED LACTONE POLYMERIZATION
14
Patent #:
5210296
Issue Dt:
05/11/1993
Application #:
07718542
Filing Dt:
06/20/1991
Title:
RECOVERY OF LACTATE ESTERS AND LACTIC ACID FROM FERMENTATION BROTH
15
Patent #:
5196551
Issue Dt:
03/23/1993
Application #:
07719952
Filing Dt:
06/24/1991
Title:
C0-VAPORIZATION PROCESS FOR PREPARING LACTIDE
16
Patent #:
5296282
Issue Dt:
03/22/1994
Application #:
07743850
Filing Dt:
08/12/1991
Title:
DEGRADABLE REPELLANT COATED ARTICLES
17
Patent #:
5221362
Issue Dt:
06/22/1993
Application #:
07749163
Filing Dt:
08/23/1991
Title:
NON-HALOGENATED AQUEOUS CLEANING SYSTEMS
18
Patent #:
5136057
Issue Dt:
08/04/1992
Application #:
07780821
Filing Dt:
10/22/1991
Title:
HIGH YIELD RECYCLE PROCESS FOR LACTIDE
19
Patent #:
5268507
Issue Dt:
12/07/1993
Application #:
07796272
Filing Dt:
11/22/1991
Title:
PREPARATION OF AMIDE DERIVATIVES OF HYDROXY ACIDS
20
Patent #:
5229528
Issue Dt:
07/20/1993
Application #:
07796273
Filing Dt:
11/22/1991
Title:
RAPID DEPOLYMERIZATION OF POLYHYDROXY ACIDS
21
Patent #:
5264614
Issue Dt:
11/23/1993
Application #:
07796274
Filing Dt:
11/22/1991
Title:
RECOVERY OF POLYHYDROXY ACIDS
22
Patent #:
5264617
Issue Dt:
11/23/1993
Application #:
07797502
Filing Dt:
11/22/1991
Title:
PREPARATION OF ALKYL ESTERS BY DEPOLYMERIZATION
23
Patent #:
5264626
Issue Dt:
11/23/1993
Application #:
07797503
Filing Dt:
11/22/1991
Title:
RAPID DEPOLYMERIZATION OF POLYHYDROXY ACIDS
24
Patent #:
5236560
Issue Dt:
08/17/1993
Application #:
07813189
Filing Dt:
03/13/1992
Title:
SOLVENTLESS DIMERIC CYCLIC ESTER DISTILLATION PROCESS
25
Patent #:
5208297
Issue Dt:
05/04/1993
Application #:
07814135
Filing Dt:
12/30/1991
Title:
RARE EARTH METAL COORDINATION COMPOUNDS AS LACTONE POLYMERIZATION CATALYSTS
26
Patent #:
5235031
Issue Dt:
08/10/1993
Application #:
07815107
Filing Dt:
03/13/1992
Title:
POLYMERIZATION OF LACTIDE
27
Patent #:
5225521
Issue Dt:
07/06/1993
Application #:
07815995
Filing Dt:
12/31/1991
Title:
STAR-SHAPED HYDROXYACID POLYMERS
28
Patent #:
5202413
Issue Dt:
04/13/1993
Application #:
07816201
Filing Dt:
12/31/1991
Title:
ALTERNATING (ABA)N POLYLACTIDE BLOCK COPOLYMERS
29
Patent #:
5270400
Issue Dt:
12/14/1993
Application #:
07816433
Filing Dt:
12/31/1991
Title:
L,D-POLYLACTIDE COPOLYMERS WITH CONTROLLED MORPHOLOGY
30
Patent #:
5134171
Issue Dt:
07/28/1992
Application #:
07826357
Filing Dt:
01/27/1992
Title:
DEGRADABLE FOAM MATERIALS
31
Patent #:
5266706
Issue Dt:
11/30/1993
Application #:
07828547
Filing Dt:
01/28/1992
Title:
SOLVENT SCRUBBING RECOVERY OF LACTIDE AND OTHER DIMERIC CYCLIC ESTERS
32
Patent #:
5326887
Issue Dt:
07/05/1994
Application #:
07836228
Filing Dt:
02/14/1992
Title:
PROCESS FOR THE PREPARATION OF 1,4-DIOXANE-2,5-DIONES
33
Patent #:
5288881
Issue Dt:
02/22/1994
Application #:
07848188
Filing Dt:
03/12/1992
Title:
CONTINUOUS REDUCED PRESSURE DIMERIC CYCLIC ESTER PRODUCTION
34
Patent #:
5210108
Issue Dt:
05/11/1993
Application #:
07922269
Filing Dt:
07/29/1992
Title:
DEGRADABLE FOAM MATERIALS
35
Patent #:
5300358
Issue Dt:
04/05/1994
Application #:
07956325
Filing Dt:
11/24/1992
Title:
DEGRADABLE ABSORBANT STRUCTURES
36
Patent #:
5288841
Issue Dt:
02/22/1994
Application #:
07984005
Filing Dt:
11/30/1992
Title:
FLUIDIZED BED RING-OPENING POLYMERIZATION PROCESS
37
Patent #:
5292859
Issue Dt:
03/08/1994
Application #:
07995457
Filing Dt:
12/22/1992
Title:
RARE EARTH METAL COORDINATION COMPOUNDS AS LACTONE POLYMERIZATION CATALYSTS
38
Patent #:
5420235
Issue Dt:
05/30/1995
Application #:
08006726
Filing Dt:
01/21/1993
Title:
CONTINUOUS POLY (HYDROXY ACID) POLYMERIZATION USING A COUNTER-CURRENT IMPELLER MIXING SYSTEM
39
Patent #:
5342969
Issue Dt:
08/30/1994
Application #:
08025923
Filing Dt:
03/03/1993
Title:
RECOVERY OF HYDROXYCARBOXYLIC ACID VALUES FROM POLY(HYDROXYCARBOXYLIC ACIDS)
40
Patent #:
5310599
Issue Dt:
05/10/1994
Application #:
08057817
Filing Dt:
05/06/1993
Title:
METHOD FOR MAKING POLYMERS OF ALPHA-HYDROXY ACIDS
41
Patent #:
5382617
Issue Dt:
01/17/1995
Application #:
08107646
Filing Dt:
08/20/1993
Title:
STABILIZATION OF POLY(HYDROXY ACID)S DERIVED FROM LACTIC OR GLYCOLIC ACID
42
Patent #:
5374743
Issue Dt:
12/20/1994
Application #:
08128433
Filing Dt:
09/30/1993
Title:
PROCESS FOR THE SYNTHESIS OF LACTIDE OR GLYCOLIDE FROM LACTIC ACID OR GLYCOLIDE ACID OLIGOMERS
43
Patent #:
5346966
Issue Dt:
09/13/1994
Application #:
08141183
Filing Dt:
10/26/1993
Title:
L,D-POLYLACTIDE COPOLYMERS WITH CONTROLLED MORPHOLOGY
44
Patent #:
5399666
Issue Dt:
03/21/1995
Application #:
08230994
Filing Dt:
04/21/1994
Title:
EASILY DEGRADABLE STAR-BLOCK COPOLYMERS
45
Patent #:
6310218
Issue Dt:
10/30/2001
Application #:
08231964
Filing Dt:
04/22/1994
Title:
MELT CRYSTALLIZATION PURIFICATION OF LACTIDES
Assignor
1
E.I. DU PONT DE NEMOURS AND COMPANY
Exec Dt:
11/09/1994
Assignee
1
ECOLOGICAL CHEMICAL PRODUCTS
CONCORD PLAZA, NAAMANS BLDG., SUITE 200
3500 SILVERSIDE ROAD
WILMINGTON, DELAWARE 19810
Correspondence name and address
DON O. WINSLOW
LEGAL - PATENTS
E.I. DU PONT DE NEMOURS COMPANY
1007 MARKET STREET
WILMINGTON, DE 19898

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