Donald J. Hoffmann

Person

Elmhurst, IL, US

People

Patents Grantslast 30 patents

Information Patent Grant
Heat-sensitive chromogenic system
- Patent number 6,060,428
- Issue date May 9, 2000
- Wallace Computer Services, Inc.
- John C. H. Chang
- B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
Information Patent Grant
Pressure-sensitive tamper evident system
- Patent number 5,970,875
- Issue date Oct 26, 1999
- Wallace Computer Services, Inc.
- Donald J. Hoffmann
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Linerless adhesive-equipped carrier assembly and method
- Patent number 5,874,142
- Issue date Feb 23, 1999
- Wallace Computer Services, Inc.
- Donald J. Hoffmann
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Ultraviolet radiation monitoring device and use thereof
- Patent number 5,612,541
- Issue date Mar 18, 1997
- Wallace Computer Services, Inc.
- Donald J. Hoffmann
- G01 - MEASURING TESTING
Information Patent Grant
Label assembly with multi-ply insert
- Patent number 5,587,222
- Issue date Dec 24, 1996
- Wallace Computer Services, Inc.
- Donald J. Hoffmann
- B32 - LAYERED PRODUCTS
Information Patent Grant
Label-equipped web method
- Patent number 5,562,789
- Issue date Oct 8, 1996
- Wallace Computer Services, Inc.
- Donald J. Hoffmann
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Hidden entry system and image-developing device therefor
- Patent number 5,484,169
- Issue date Jan 16, 1996
- Wallace Computer Services, Inc.
- John C. H. Chang
- B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
Information Patent Grant
Hidden entry system and image-developing device therefor
- Patent number 5,431,452
- Issue date Jul 11, 1995
- Wallace Computer Services, Inc.
- John C. H. Chang
- B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
Information Patent Grant
Label-equipped web method
- Patent number 5,421,942
- Issue date Jun 6, 1995
- Wallace Computer Services, Inc.
- Donald J. Hoffmann
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Method of making and using a label-equipped form
- Patent number 5,271,787
- Issue date Dec 21, 1993
- Wallace Computer Services, Inc.
- Donald J. Hoffmann
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Label-equipped sheet
- Patent number 5,254,381
- Issue date Oct 19, 1993
- Wallace Computer Services, Inc.
- Donald J. Hoffmann
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS

Donald J. Hoffmann

Person

Patents Grantslast 30 patents

Heat-sensitive chromogenic system

Pressure-sensitive tamper evident system

Linerless adhesive-equipped carrier assembly and method

Ultraviolet radiation monitoring device and use thereof

Label assembly with multi-ply insert

Label-equipped web method

Hidden entry system and image-developing device therefor

Hidden entry system and image-developing device therefor

Label-equipped web method

Method of making and using a label-equipped form

Label-equipped sheet