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Patent Assignment Assignor Details
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Assignor Name : YOON, HEEYOUNG
Total Assignments: 21
Assignment: 1
Reel/Frame:003909/0461   Pages: 1
Recorded: 07/27/1981
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
JACKSON, ROBERT G.
Exec Dt:
07/23/1981
2
YOON, HEEYOUNG
Exec Dt:
07/23/1981
Assignee
1
CONOCO INC.STAMFORD,CT. A CORP.OF
DELAWARE
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4366782
NONE
06286992
Correspondence name and address
DALE LOVERCHECK
CONOCO COAL DEV. CO.
RESEARCH DIV.
LIBRARY, PA 15129
Assignment: 2
Reel/Frame:003940/0636   Pages: 1
Recorded: 10/26/1981
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor
1
YOON, HEEYOUNG
Exec Dt:
10/21/1981
Assignee
1
CONOCO INC, A CORP OF DE
HIGH RIDGE PARK
STAMFORD, CONNECTICUT
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4407238
NONE
06315115
Correspondence name and address
DALE LOVERCHECK
CONOCO COAL DEVELOPMENT CO.
RESEARCH DIVISION
LIBRARY, PA 15129
Assignment: 3
Reel/Frame:003973/0667   Pages: 1
Recorded: 01/22/1982
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor
1
YOON, HEEYOUNG
Exec Dt:
01/19/1982
Assignee
1
CONOCO INC., A CORP. OF DE
STAMFORD, CONNECTICUT
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4378336
NONE
06341946
Correspondence name and address
DALE LOVERCHECK
CONOCO COAL DEV. CO.
RESEARCH DIV.
LIBRARY, PA 15129
Assignment: 4
Reel/Frame:004009/0127   Pages: 1
Recorded: 06/16/1982
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
YOON, HEEYOUNG
Exec Dt:
06/02/1982
2
JACKSON, ROBERT G.
Exec Dt:
06/07/1982
Assignee
1
CONOCO INC. STAMFORD, CT A CORP. OF DE
CONNECTICUT
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4408572
NONE
06389131
Correspondence name and address
DALE LOVERCHECK
CONOCO INC.
COAL RESEARCH DIVISION
LIBRARY, PA 15129
Assignment: 5
Reel/Frame:004012/0899   Pages: 1
Recorded: 06/07/1982
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor
1
YOON, HEEYOUNG
Exec Dt:
06/02/1982
Assignee
1
CONOCO INC.
A CORP. OF DE
STAMFORD, CONNECTICUT
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4418653
NONE
06385747
Correspondence name and address
DALE LOVERCHECK
CONOCO INC.
COAL RESEARCH DIV.
LIBRARY, PA 15129
Assignment: 6
Reel/Frame:004018/0039   Pages: 1
Recorded: 06/16/1982
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
JACKSON, ROBERT G.
Exec Dt:
06/07/1982
2
YOON, HEEYOUNG
Exec Dt:
06/02/1982
Assignee
1
CONOCO INC., STAMFORD, CT, A CORP. OF
DELAWARE
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4408571
NONE
06388839
Correspondence name and address
DALE LOVERCHECK
CONOCO, INC.
COAL RESEARCH DIVISION
LIBRARY, PA 15129
Assignment: 7
Reel/Frame:004042/0624   Pages: 1
Recorded: 09/03/1982
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
RUTLEDGE, GERALD D.
Exec Dt:
08/31/1982
2
YOON, HEEYOUNG
Exec Dt:
08/31/1982
Assignee
1
CONOCO INC.
A CORP. OF DE
STAMFORD, CONNECTICUT
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4425876
NONE
06414984
Correspondence name and address
DALE LOVERCHECK
COAL RESEARCH DIVISION
CONOCO INC.
LIBRARY, PA 15129
Assignment: 8
Reel/Frame:004042/0759   Pages: 1
Recorded: 09/03/1982
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor
1
YOON, HEEYOUNG
Exec Dt:
08/31/1982
Assignee
1
CONOCO INC.
A CORP. OF DE
STAMFORD, CONNECTICUT
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4444158
NONE
06414744
Correspondence name and address
DALE LOVERCHECK
COAL RESEARCH DIVISION
CONOCO INC.
LIBRARY, PA 15129
Assignment: 9
Reel/Frame:004118/0886   Pages: 1
Recorded: 04/15/1983
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor
1
YOON, HEEYOUNG
Exec Dt:
04/11/1983
Assignee
1
CONOCO INC.
A CORP. OF DE
STAMFORD, CONNECTICUT
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4488517
NONE
06485149
Correspondence name and address
DALE LOVERCHECK
COAL RESEARCH DIV.
CONOCO INC.
LIBRARY, PA 15129
Assignment: 10
Reel/Frame:004178/0679   Pages: 1
Recorded: 09/15/1983
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
YOON, HEEYOUNG
Exec Dt:
09/12/1983
2
RUTLEDGE, GERALD D.
Exec Dt:
09/12/1983
Assignee
1
CONOCO INC., A DE CORP.
LIBRARY, PENNSYLVANIA 15129
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4441461
NONE
06532257
Correspondence name and address
DALE LOVERCHECK
COAL RESEARCH DIVISION
CONOCO INC.
LIBRARY, PA 15129
Assignment: 11
Reel/Frame:004186/0967   Pages: 1
Recorded: 10/19/1983
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor
1
YOON, HEEYOUNG
Exec Dt:
10/17/1983
Assignee
1
CONOCO INC., A DE CORP.
WILMINGTON, DELAWARE
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4476818
NONE
06543542
Correspondence name and address
DALE LOVERCHECK
CONOCO INC.
COAL RESEARCH DIVISION
LIBRARY, PA 15129
Assignment: 12
Reel/Frame:004302/0471   Pages: 1
Recorded: 08/17/1984
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor
1
YOON, HEEYOUNG
Exec Dt:
08/15/1984
Assignee
1
CONOCO INC., A DE CORP.
WILMINGTON,, DELAWARE
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4519342
NONE
06624360
Correspondence name and address
WILLIAM A. MIKESELL, JR.
COAL RESEARCH DIVISION
CONOCO INC.
LIBRARY, PA 15129
Assignment: 13
Reel/Frame:004386/0804   Pages: 1
Recorded: 03/22/1985
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor
1
YOON, HEEYOUNG
Exec Dt:
03/19/1985
Assignee
1
CONOCO INC.
WILMINGTON, DELAWARE
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4604269
NONE
06714750
Correspondence name and address
WILLIAM A. MIKESELL, JR.
COAL RESEARCH DIVISION
CONOCO, INC.
LIBRARY, PA 15129
Assignment: 14
Reel/Frame:004386/0845   Pages: 1
Recorded: 03/22/1985
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
YOON, HEEYOUNG
Exec Dt:
03/19/1985
2
STATNICK, ROBERT M.
Exec Dt:
03/19/1985
Assignee
1
CONOCO INC.
WILMINGTON, DELAWARE
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4613487
NONE
06714748
Correspondence name and address
WILLIAM A. MIKESELL, JR.
COAL RESEARCH DIVISION
CONOCO INC.
LIBRARY, PA 15129
Assignment: 15
Reel/Frame:004386/0855   Pages: 1
Recorded: 03/22/1985
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
YOON, HEEYOUNG
Exec Dt:
03/19/1985
2
STATNICK, ROBERT M.
Exec Dt:
03/19/1985
Assignee
1
CONOCO INC.
WILMINGTON, DELAWARE
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4600568
NONE
06714742
Correspondence name and address
WILLIAM A. MIKESELL, JR.
COAL RESEARCH DIV.
CONOCO INC.
LIBRARY, PA 15129
Assignment: 16
Reel/Frame:004386/0856   Pages: 1
Recorded: 03/22/1985
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor
1
YOON, HEEYOUNG
Exec Dt:
03/19/1985
Assignee
1
CONOCO INC.
WILMINGTON, DELAWARE
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4600569
NONE
06714741
Correspondence name and address
WILLIAM A. MIKESELL, JR.
COAL RESEARCH DIV.
CONOCO INC.
LIBRARY, PA 15129
Assignment: 17
Reel/Frame:004392/0551   Pages: 1
Recorded: 03/22/1985
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
YOON, HEEYOUNG
Exec Dt:
03/19/1985
2
BURKE, FRANCIS P.
Exec Dt:
03/19/1985
Assignee
1
CONOCO INC. A CORP OF DE
WILMINGTON,, DELAWARE
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4609536
NONE
06714754
Correspondence name and address
WILLIAM A. MIKESELL, JR.
COAL RESEARCH DIVISION
CONOCO INC.
LIBRARY, PA 15129
Assignment: 18
Reel/Frame:004395/0983   Pages: 1
Recorded: 03/22/1985
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor
1
YOON, HEEYOUNG
Exec Dt:
03/19/1985
Assignee
1
CONOCO INC. A CORP OF DE
WILMINGTON,, DELAWARE
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4603037
NONE
06714751
Correspondence name and address
WILLIAM A. MIKESELL, JR.
COAL RESEARCH DIVISION
CONOCO INC.
LIBRARY, PA 15129
Assignment: 19
Reel/Frame:004409/0670   Pages: 1
Recorded: 05/20/1985
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor
1
YOON, HEEYOUNG
Exec Dt:
05/17/1985
Assignee
1
CONOCO INC.
A CORP OF DE
WILMINGTON, DELAWARE
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4615871
NONE
06736157
Correspondence name and address
CORTLAN R. SCHUPBACH
COAL RESEARCH DIV.
CONOCO INC.
LIBRARY, PA 15129
Assignment: 20
Reel/Frame:004517/0588   Pages: 1
Recorded: 01/15/1986
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor
1
YOON, HEEYOUNG
Exec Dt:
12/20/1985
Assignee
1
CONOCO INC., A CORP. OF DE.
WILMINGTON, DELAWARE
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4670238
NONE
06818941
Correspondence name and address
CORTLAN R. SCHUPBACH
COAL RESEARCH DIVISION
CONOCO INC.,
LIBRARY, PA 15129
Assignment: 21
Reel/Frame:063435/0116   Pages: 3
Recorded: 04/25/2023
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SCHNEEBAUM, DAVID S.
Exec Dt:
04/20/2023
2
SCHNEEBAUM, ELI MAX
Exec Dt:
04/20/2023
3
YOON, HEEYOUNG
Exec Dt:
04/20/2023
Assignee
1
SNOWTREE WORLDWIDE INC.
25 NAUTILUS AVENUE
PLAINVIEW, NEW YORK 11803
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20230240358
18103579
Correspondence name and address
COLLARD & ROE, P.C.
1077 NORTHERN BOULEVARD
ROSLYN, NY 11576

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