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 : BLACKBURN, WILLIAM P.
Total Assignments: 20
Assignment: 1
Reel/Frame:004212/0937   Pages: 4
Recorded: 12/23/1983
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
DAS, SURYYA K.
Exec Dt:
12/13/1983
2
PORTER, SAMUEL JR.
Exec Dt:
12/14/1983
3
BLACKBURN, WILLIAM P.
Exec Dt:
12/13/1983
4
SCHIMMEL, KARL F.
Exec Dt:
12/13/1983
5
DOWBENKO, ROSTYSLAW
Exec Dt:
12/13/1983
Assignee
1
PPG INDUSTRIES, INC.
A CORP. OF PA
PITTSBURGH, PENNSYLVANIA
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4529665
NONE
06565249
Correspondence name and address
PATENT DEPARTMENT
PPG INDUSTRIES, INC.
ONE PPG PLACE
PITTSBURGH, PA 15272
Assignment: 2
Reel/Frame:004414/0039   Pages: 3
Recorded: 06/05/1985
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
OLSON, KURT G.
Exec Dt:
05/28/1985
2
BLACKBURN, WILLIAM P.
Exec Dt:
05/28/1985
3
ENDLISH, MARK E.
Exec Dt:
05/28/1985
Assignee
1
PPG INDUSTRIES, INC.
A CORP OF PA
PITTSBURGH, PENNSYLVANIA
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4611040
NONE
06741376
Correspondence name and address
PATENT DEPT.
PPG INDUSTRIES, INC.
ONE PPG PLACE
PITTSBURGH, PA 15272
Assignment: 3
Reel/Frame:004446/0014   Pages: 5
Recorded: 08/19/1985
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
SIMPSON, DENNIS A.
Exec Dt:
08/15/1985
2
SINGER, DEBRA L.
Exec Dt:
08/15/1985
3
DOWBENKO, ROSTYSLAW
Exec Dt:
08/13/1985
4
BLACKBURN, WILLIAM P.
Exec Dt:
08/13/1985
5
KANIA, CHARLES M.
Exec Dt:
08/13/1985
Assignee
1
PPG INDUSTRIES, INC., PITTSBURGH, PENNSYLVANIA, A CORP OF PA.
PENNSYLVANIA
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4650718
NONE
06767020
Correspondence name and address
PATENT DEPT.
PPG INDUSTRIES, INC.
ONE PPG PLACE
PITTSBURGH, PA 15272
Assignment: 4
Reel/Frame:004522/0546   Pages: 4
Recorded: 03/14/1986
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
DOWBENKO, ROSTYSLAW
Exec Dt:
01/03/1986
2
SINGER, DEBRA L.
Exec Dt:
01/03/1986
3
BLACKBURN, WILLIAM P.
Exec Dt:
01/03/1986
4
WILLIAMS, FRANK C. JR.
Exec Dt:
01/03/1986
Assignee
1
PPG INDUSTRIES, INC., A CORP OF PA.
PITTSBURGH, PENNSYLVANIA
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4652610
NONE
06816080
Correspondence name and address
PATENT DEPARTMENT
PPG INDUSTIRES, INC.
ONE PPG PLACE
PITTSBURGH, PA 15272
Assignment: 5
Reel/Frame:004526/0292   Pages: 5
Recorded: 03/07/1986
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
SIMPSON, DENNIS A.
Exec Dt:
03/03/1986
2
SINGER, DEBRA L.
Exec Dt:
03/03/1986
3
DOWBENKO, ROSTYSLAW
Exec Dt:
03/03/1986
4
BLACKBURN, WILLIAM P.
Exec Dt:
03/03/1986
5
KANIA, CHARLES M.
Exec Dt:
03/03/1986
Assignee
1
PPG INDUSTRIES, INC.
A CORP. OF PA.
PITTSBURGH, PENNSYLVANIA
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4681811
NONE
06837118
Correspondence name and address
PATENT DEPARTMENT
PPG INDUSTRIES, INC.
ONE PPG PLACE
PITTSBURGH, PA 15272
Assignment: 6
Reel/Frame:004576/0618   Pages: 4
Recorded: 07/02/1986
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
CHANG, WEN-HSUAN
Exec Dt:
06/27/1986
2
BLACKBURN, WILLIAM P.
Exec Dt:
06/27/1986
3
PRUCNAL, PAUL J.
Exec Dt:
06/27/1986
4
DUFFORD, EDWARD L.
Exec Dt:
06/30/1986
Assignee
1
PPG INDUSTRIES, INC., A CORP OF PA
PITTSBURGH, PENNSYLVANIA 15272
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4684697
NONE
06881434
Correspondence name and address
PATENT DEPT.
PPG INDUSTRIES, INC.
ONE PPG PLACE
PITTSBURGH, PA 15272
Assignment: 7
Reel/Frame:004594/0586   Pages: 4
Recorded: 08/21/1986
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
BLACKBURN, WILLIAM P.
Exec Dt:
08/01/1986
2
AMBROSE, RONALD R.
Exec Dt:
08/07/1986
3
PORTER, SAMUEL JR.
Exec Dt:
08/07/1986
4
BURKHOLDER, MARY JO
Exec Dt:
08/07/1986
Assignee
1
PPG INDUSTRIES, INC., A CORP OF PA.
PITTSBURGH, PENNSYLVANIA
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4732790
NONE
06898664
Correspondence name and address
PATENT DEPARTMENT
PPG INDUSTRIES, INC.
ONE PPG PLACE
PITTSBURGH, PA 15272
Assignment: 8
Reel/Frame:004594/0590   Pages: 4
Recorded: 08/21/1986
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
BLACKBURN, WILLIAM P.
Exec Dt:
08/01/1986
2
AMBROSE, RONALD R.
Exec Dt:
08/07/1986
3
PORTER, SAMUEL JR.
Exec Dt:
08/07/1986
4
BURKHOLDER, MARY J.
Exec Dt:
08/07/1986
Assignee
1
PPG INDUSTRIES, INC., A CORP OF PA.
PITTSBURGH, PENNSYLVANIA
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4755581
NONE
06898665
Correspondence name and address
PATENT DEPARTMENT
PPG INDUSTRIES, INC.
ONE PPG PLACE
PITTSBURGH, PA 15272
Assignment: 9
Reel/Frame:004594/0594   Pages: 4
Recorded: 08/21/1986
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
BLACKBURN, WILLIAM P.
Exec Dt:
08/01/1986
2
AMBROSE, RONALD R.
Exec Dt:
08/04/1986
3
PORTER, SAMUEL JR.
Exec Dt:
08/04/1986
4
BURKHOLDER, MARY J.
Exec Dt:
08/04/1986
Assignee
1
PPG INDUSTRIES, INC., A CORP OF PA.
PITTSBURGH, PENNSYLVANIA
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4755582
NONE
06898666
Correspondence name and address
PATENT DEPARTMENT
PPG INDUSTRIES, INC.
ONE PPG PLACE
PITTSBURGH, PA 15272
Assignment: 10
Reel/Frame:004594/0598   Pages: 4
Recorded: 08/21/1986
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
BLACKBURN, WILLIAM P.
Exec Dt:
08/01/1986
2
AMBROSE, RONALD R.
Exec Dt:
08/07/1986
3
PORTER, SAMUEL JR.
Exec Dt:
08/07/1986
4
BURKHOLDER, MARY J.
Exec Dt:
08/07/1986
Assignee
1
PPG INDUSTRIES, INC., A CORP OF PA.
PITTSBURGH, PENNSYLVANIA
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4732791
NONE
06898670
Correspondence name and address
PATENT DEPT.
PPG INDUSTRIES, INC.
ONE PPG PLACE
PITTSBURGH, PA 15272
Assignment: 11
Reel/Frame:004615/0681   Pages: 4
Recorded: 10/06/1986
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
AMBROSE, RONALD R.
Exec Dt:
09/30/1986
2
BLACKBURN, WILLIAM P.
Exec Dt:
09/30/1986
3
PORTER, SAMUEL JR.
Exec Dt:
09/30/1986
4
WAITE, NANCY J.
Exec Dt:
09/30/1986
Assignee
1
PPG INDUSTRIES, INC., A CORP OF PA.
PITTSBURGH, PENNSYLVANIA
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4699814
NONE
06915362
Correspondence name and address
PATENT DEPT.
PPG INDUSTRIES, INC.
ONE PPG PLACE
PITTSBURGH, PA 15272
Assignment: 12
Reel/Frame:004691/0730   Pages: 3
Recorded: 01/08/1987
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
BLACKBURN, WILLIAM P.
Exec Dt:
12/29/1986
2
SINGER, DEBRA L.
Exec Dt:
01/02/1987
Assignee
1
PPG INDUSTRIES, INC.
A CORP. OF PA
PITTSBURGH, PENNSYLVANIA
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4764430
NONE
07001304
Correspondence name and address
PATENT DEPARTMENT
PPG INDUSTRIES, INC.
ONE PPG PLACE
PITTSBURGH, PA 15272
Assignment: 13
Reel/Frame:004742/0293   Pages: 4
Recorded: 07/13/1987
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
PORTER, SAMUEL JR.
Exec Dt:
07/01/1987
2
SIMPSON, DENNIS A.
Exec Dt:
06/24/1987
3
BLACKBURN, WILLIAM P.
Exec Dt:
06/29/1987
4
ENDLISH, MARK E.
Exec Dt:
07/07/1987
Assignee
1
PPG INDUSTRIES, INC.
A CORP. OF PA
PITTSBURGH, PENNSYLVANIA
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4917955
NONE
07072302
Correspondence name and address
PATENT DEPARTMENT
PPG INDUSTRIES, INC.
ONE PPG PLACE
PITTSBURGH, PA 15272
Assignment: 14
Reel/Frame:004745/0799   Pages: 3
Recorded: 07/16/1987
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
PORTER, SAMUEL JR.
Exec Dt:
07/01/1987
2
SIMPSON, DENNIS A.
Exec Dt:
06/24/1987
3
BLACKBURN, WILLIAM P.
Exec Dt:
06/29/1987
Assignee
1
PPG INDUSTRIES, INC.
A CORP. OF PA.
PITTSBURGH, PENNSYLVANIA
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4849283
NONE
07074130
Correspondence name and address
PATENT DEPARTMENT
PPG INDUSTRIES, INC.
ONE PPG PLACE
PITTSBURGH, PA 15272
Assignment: 15
Reel/Frame:004760/0950   Pages: 3
Recorded: 08/19/1987
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
SCHIMMEL, KARL F.
Exec Dt:
08/18/1987
2
BLACKBURN, WILLIAM P.
Exec Dt:
08/18/1987
Assignee
1
PPG INDUSTRIES, INC.
A CORP OF PA
PITTSBURGH, PENNSYLVANIA
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4927868
NONE
07087012
Correspondence name and address
PATENT DEPT.
PPG INDUSTRIES, INC.
ONE PPG PLACE
PITTSBURGH, PA 15272
Assignment: 16
Reel/Frame:010651/0207   Pages: 4
Recorded: 02/29/2000
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
BLACKBURN, WILLIAM P.
Exec Dt:
02/24/2000
2
BOWLES, ROBERT J. III
Exec Dt:
02/25/2000
3
LEVESQUE, MICHAEL B.
Exec Dt:
02/24/2000
4
MALDONADO, ERNESTO
Exec Dt:
02/24/2000
Assignee
1
TRANSITIONS OPTICAL, INC
9251 BELCHER ROAD
PINELLAS PARK, FLORIDA 33782
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6352747
NONE
09515661
Correspondence name and address
PPG INDUSTRIES, INC.
IRWIN STEIN, ESQ
ONE PPG PLACE
PITTSBURG, PA 15272
Assignment: 17
Reel/Frame:013243/0635   Pages: 4
Recorded: 08/28/2002
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
BLACKBURN, WILLIAM P.
Exec Dt:
08/08/2002
2
LEVESQUE, MICHAEL B.
Exec Dt:
08/08/2002
3
SEYBERT, KEVIN W.
Exec Dt:
08/20/2002
4
CONKLIN, JEANINE A.
Exec Dt:
08/13/2002
5
GRUCHACZ, NANCYANNE
Exec Dt:
08/08/2002
Assignee
1
PPG INDUSTIRES OHIO, INC.
3800 WEST 143RD STREET
CLEVELAND, OHIO 44111
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7452611
US20030165686
10229773
Correspondence name and address
CAROL A. MARMO, ESQ.
LAW-IP DEPT. - 39TH FLOOR
ONE PPG PLACE
PITTSBURGH, PA 15272
Assignment: 18
Reel/Frame:021525/0001   Pages: 6
Recorded: 09/12/2008
Attorney Dkt #:1722A1
Conveyance: CORRECTIVE ASSIGNMENT TO CORRECT THE RECEIVING PARTY PREVIOUSLY RECORDED ON REEL 013243 FRAME 0635. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT.
Assignors
1
BLACKBURN, WILLIAM P.
Exec Dt:
08/08/2002
2
LEVESQUE, MICHAEL B.
Exec Dt:
08/08/2002
3
SEYBERT, KEVIN W.
Exec Dt:
08/20/2002
4
CONKLIN, JEANINE A.
Exec Dt:
08/13/2002
5
GRUCHACZ, NANCYANNE
Exec Dt:
08/08/2002
Assignee
1
TRANSITIONS OPTICAL, INC.
9251 BELCHER ROAD
PINELLAS PARK, FLORIDA 33782
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7452611
US20030165686
10229773
Correspondence name and address
PPG INDUSTRIES, INC.
ONE PPG PLACE - 39TH FLOOR
LAW DEPARTMENT
PITTSBURGH, PA 15272-0001
Assignment: 19
Reel/Frame:015427/0018   Pages: 7
Recorded: 06/07/2004
Attorney Dkt #:1722P1
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
BLACKBURN, WILLIAM P.
Exec Dt:
03/17/2004
2
LEVESQUE, MICHAEL B.
Exec Dt:
03/19/2004
3
STEWART, KEVIN J.
Exec Dt:
03/19/2004
4
SHORT, CATHY L.
Exec Dt:
03/22/2004
Assignee
1
TRANSITIONS OPTICAL, INC.
9251 BELCHER ROAD
PINELLAS PARK, FLORIDA 33782
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7410691
US20040207809
10793241
Correspondence name and address
PPG INDUSTRIES, INC.
FRANK P. MALLAK
ONE PPG PLACE
PITTSBURGH, PA 15272
Assignment: 20
Reel/Frame:016718/0249   Pages: 8
Recorded: 06/24/2005
Attorney Dkt #:2037A1
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
LYDON, MICHAEL T.
Exec Dt:
05/24/2005
2
BLACKBURN, WILLIAM P.
Exec Dt:
05/24/2005
3
MALDONADO, ERNESTO
Exec Dt:
05/31/2005
4
KAUSCH, JAMES R.
Exec Dt:
05/27/2005
5
PACE, LEX E.
Exec Dt:
05/24/2005
Assignee
1
TRANSITIONS OPTICAL, INC.
9251 BELCHER ROAD
PINELLAS PARK, FLORIDA 33782
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7757629
US20060231022
11105827
Correspondence name and address
LINDA PINGITORE
PPG INDUSTRIES, INC.
INTELLECTUAL PROPERTY DEPARTMENT
ONE PPG PLACE
PITTSBURGH, PA 15272

Search Results as of: 05/10/2024 04:17 AM
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