skip navigationU S P T O SealUnited States Patent and Trademark Office AOTW logo
Home|Site Index|Search|Guides|Contacts|eBusiness|eBiz alerts|News|Help
Assignments on the Web > Patent Query
Patent Assignment Assignor Details
NOTE:Results display only for issued patents and published applications. For pending or abandoned applications please consult USPTO staff.

Assignor Name : LANGSDORF, LEAH
Total Assignments: 13
Assignment: 1
Reel/Frame:009779/0788   Pages: 3
Recorded: 02/24/1999
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
HOLESCHOVSKY, ULRICH B.
Exec Dt:
01/08/1999
2
ROBBINS, JEFFREY L.
Exec Dt:
01/07/1999
3
STEFANOU, HARRY
Exec Dt:
01/07/1999
4
LANGSDORF, LEAH
Exec Dt:
01/12/1999
5
GIBALA, DAVID
Exec Dt:
01/07/1999
6
POLLOCK, ROBERT R.
Exec Dt:
01/07/1999
Assignee
1
ARCO CHEMICAL TECHNOLOGY L.P.
TWO GREENVILLE CROSSING
4001 KENNETT PIKE
GREENVILLE, DELAWARE 19807
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6264775
NONE
09219166
Correspondence name and address
ARCO CHEMICAL COMPANY
JONATHAN L. SCHUCHARDT, ESQ.
3801 WEST CHESTER PIKE
LEGAL DEPARTMENT
NEWTOWN SQUARE, PA 19073
Assignment: 2
Reel/Frame:030651/0453   Pages: 5
Recorded: 06/20/2013
Attorney Dkt #:PLY208-0001B US/CON
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
KNAPP, BRIAN
Exec Dt:
02/27/2009
2
ELCE, EDMUND
Exec Dt:
02/24/2009
3
BEDWELL, BRIAN
Exec Dt:
03/03/2009
4
LANGSDORF, LEAH
Exec Dt:
02/27/2009
5
WILKS, RYAN
Exec Dt:
02/26/2009
Assignee
1
PROMERUS, LLC
9921 BRECKSVILLE ROAD
BRECKSVILLE, OHIO 44141
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8470944
US20120283404
13532864
Correspondence name and address
PROMERUS, LLC
9921 BRECKSVILLE ROAD
BRECKSVILLE, OH 44141
Assignment: 3
Reel/Frame:026719/0214   Pages: 4
Recorded: 08/09/2011
Attorney Dkt #:PLY210-0001A US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
BELL, ANDREW
Exec Dt:
07/21/2011
2
SHICK, ROBERT A
Exec Dt:
08/04/2011
3
LANGSDORF, LEAH
Exec Dt:
07/25/2011
4
SETO, KEITARO
Exec Dt:
08/01/2011
5
TSANG, W. C. PETER
Exec Dt:
07/29/2011
Assignee
1
PROMERUS LLC
9921 BRECKSVILLE ROAD
BRECKSVILLE, OHIO 44141
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8575297
US20120031556
13204044
Correspondence name and address
PROMERUS LLC
9921 BRECKSVILLE ROAD
BRECKSVILLE, OH 44141
Assignment: 4
Reel/Frame:026719/0448   Pages: 3
Recorded: 08/09/2011
Attorney Dkt #:PLY210-0003A US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
APANIUS, CHRISTOPHER
Exec Dt:
08/01/2011
2
BELL, ANDREW
Exec Dt:
07/21/2011
3
LANGSDORF, LEAH
Exec Dt:
07/25/2011
4
TSANG, W. C. PETER
Exec Dt:
07/29/2011
Assignee
1
PROMERUS LLC
9921 BRECKSVILLE ROAD
BRECKSVILLE, OHIO 44141
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8575248
US20120034387
13204036
Correspondence name and address
PROMERUS LLC
9921 BRECKSVILLE ROAD
BRECKSVILLE, OH 44141
Assignment: 5
Reel/Frame:031295/0909   Pages: 5
Recorded: 09/27/2013
Attorney Dkt #:PLY210-0001 US DIV
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
BELL, ANDREW
Exec Dt:
07/21/2011
2
SHICK, ROBERT A
Exec Dt:
08/04/2011
3
LANGSDORF, LEAH
Exec Dt:
07/25/2011
4
SETO, KEITARO
Exec Dt:
08/01/2011
5
TSANG, W. C. PETER
Exec Dt:
07/29/2011
Assignee
1
PROMERUS, LLC
9921 BRECKSVILLE ROAD
BRECKSVILLE, OHIO 44141
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8729215
US20140024799
14038858
Correspondence name and address
PROMERUS, LLC
9921 BRECKSVILLE ROAD
BRECKSVILLE, OH 44141
Assignment: 6
Reel/Frame:031299/0463   Pages: 4
Recorded: 09/27/2013
Attorney Dkt #:PLY210-0003 US CON
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
APANIUS, CHRISTOPHER
Exec Dt:
08/01/2011
2
BELL, ANDREW
Exec Dt:
07/21/2011
3
LANGSDORF, LEAH
Exec Dt:
07/25/2011
4
TSANG, W. C. PETER
Exec Dt:
07/29/2011
Assignee
1
PROMERUS, LLC
9921 BRECKSVILLE ROAD
BRECKSVILLE, OHIO 44141
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8729166
US20140024750
14039433
Correspondence name and address
PROMERUS, LLC
9921 BRECKSVILLE ROAD
BRECKSVILLE, OH 44141
Assignment: 7
Reel/Frame:027557/0121   Pages: 3
Recorded: 01/19/2012
Attorney Dkt #:PLY210-0006A US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
APANIUS, CHRISTOPHER
Exec Dt:
11/18/2011
2
BELL, ANDREW
Exec Dt:
11/18/2011
3
LANGSDORF, LEAH
Exec Dt:
11/18/2011
4
TSANG, W. C. PETER
Exec Dt:
11/29/2011
Assignee
1
PROMERUS LLC
9921 BRECKSVILLE ROAD
BRECKSVILLE, OHIO 44141
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8535454
US20120298729
13299710
Correspondence name and address
PROMERUS LLC
9921 BRECKSVILLE ROAD
BUILDING R
BRECKSVILLE, OH 44141
Assignment: 8
Reel/Frame:031069/0724   Pages: 4
Recorded: 08/23/2013
Attorney Dkt #:PLY210-0006 US CON
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
APANIUS, CHRISTOPHER
Exec Dt:
11/18/2011
2
BELL, ANDREW
Exec Dt:
11/18/2011
3
LANGSDORF, LEAH
Exec Dt:
11/18/2011
4
TSANG, W. C. PETER
Exec Dt:
11/29/2011
Assignee
1
PROMERUS, LLC
9921 BRECKSVILLE ROAD
BRECKSVILLE, OHIO 44141
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9765200
US20130327815
13965287
Correspondence name and address
PROMERUS, LLC
9921 BRECKSVILLE ROAD
BRECKSVILLE, OH 44141
Assignment: 9
Reel/Frame:031040/0782   Pages: 4
Recorded: 08/20/2013
Attorney Dkt #:PLY212-0002 US NP
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
BELL, ANDREW
Exec Dt:
08/08/2013
2
LANGSDORF, LEAH
Exec Dt:
08/08/2013
3
BURTOVYY, OLEKSANDR
Exec Dt:
08/08/2013
Assignee
1
PROMERUS, LLC
9921 BRECKSVILLE ROAD
BRECKSVILLE, OHIO 44141
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9468890
US20140042090
13959873
Correspondence name and address
PROMERUS, LLC
9921 BRECKSVILLE ROAD
BRECKSVILLE, OH 44141
Assignment: 10
Reel/Frame:040216/0153   Pages: 4
Recorded: 11/03/2016
Attorney Dkt #:PLY212-0002US DIV
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
BELL, ANDREW
Exec Dt:
08/08/2013
2
LANGSDORF, LEAH
Exec Dt:
08/08/2013
3
BURTOVYY, OLEKSANDR
Exec Dt:
08/08/2013
Assignee
1
PROMERUS, LLC
9921 BRECKSVILLE ROAD, BUILDING R
BRECKSVILLE, OHIO 44141
Properties
 
Pat #
Pub #
Intl #
App #
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
9468890
US20140042090
13959873
 
10227433
US20160369026
15257634
Correspondence name and address
BALARAM GUPTA, C/O PROMERUS, LLC
9921 BRECKSVILLE ROAD
BUILDING R
BRECKSVILLE, OH 44141
Assignment: 11
Reel/Frame:051896/0216   Pages: 5
Recorded: 02/24/2020
Attorney Dkt #:P18-007US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
BURTOVYY, OLEKSANDR
Exec Dt:
02/21/2020
2
ZHANG, WEI
Exec Dt:
02/14/2020
3
LANGSDORF, LEAH
Exec Dt:
02/14/2020
4
RHODES, LARRY F
Exec Dt:
02/14/2020
Assignee
1
PROMERUS, LLC
9921 BRECKSVILLE RD
BRECKSVILLE, UNITED STATES 44141-3201
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11142662
US20200199391
16724600
Correspondence name and address
BALARAM GUPTA, C/O PROMERUS, LLC
9921 BRECKSVILLE RD
BRECKSVILLE, OH 44141-3201
Assignment: 12
Reel/Frame:058048/0521   Pages: 5
Recorded: 11/08/2021
Attorney Dkt #:P20-007US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
HAYAKAWA, SHUN
Exec Dt:
10/29/2021
2
DENG, GUODONG
Exec Dt:
10/27/2021
3
BURTOVYY, RUSLAN
Exec Dt:
11/02/2021
4
LANGSDORF, LEAH
Exec Dt:
10/27/2021
5
RHODES, LARRY F
Exec Dt:
10/27/2021
Assignee
1
PROMERUS, LLC
225 W. BARTGES STREET
AKRON, OHIO 44307
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11299566
US20220002453
17356637
Correspondence name and address
BALARAM GUPTA, C/O PROMERUS, LLC
225 W. BARTGES STREET
AKRON, OH 44307
Assignment: 13
Reel/Frame:064218/0282   Pages: 3
Recorded: 07/11/2023
Attorney Dkt #:E000553 US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
LANGSDORF, LEAH
Exec Dt:
06/05/2023
2
RHODES, LARRY F.
Exec Dt:
06/05/2023
Assignee
1
PROMERUS, LLC
225 WEST BARTGES STREET
AKRON, OHIO 44307
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20220362720
17738518
Correspondence name and address
PROMERUS, LLC
225 WEST BARTGES STREET
AKRON, OH 44307

Search Results as of: 05/09/2024 10:13 PM
If you have any comments or questions concerning the data displayed, contact PRD / Assignments at 571-272-3350. v.2.6
Web interface last modified: August 25, 2017 v.2.6
| .HOME | INDEX| SEARCH | eBUSINESS | CONTACT US | PRIVACY STATEMENT