1
David J Haas, Sandra F Haas: Time indicator having discrete adhesive. Temtec, Weingram & Zall, August 29, 1995: US05446705 (118 worldwide citation)

A time indicator is provided that changes color or produces an image or information after a specific time interval. The time indicator includes a base substrate with colored dye deposited on a first surface; and a substrate having an adhesive on a first surface thereof, the adhesive positioned at di ...


2
David J Haas, Sandra Haas, Inna Shames, Jody P Sherman: Identification card strip assembly. Temtec, Michael Zall, March 6, 2001: US06197396 (80 worldwide citation)

An identification card strip assembly including a support strip having thereon at least one, and preferably a plurality of identification card blanks removably and adhesively adhered to the support strip. Each identification card blank has a front printing surface for printing indicia thereon and a ...


3
David J Haas: Time indicator enhancement method. Weingram & Zall, February 20, 1990: US04903254 (75 worldwide citation)

A time indicator for use as a security badge. The badge includes a four-layer front part and a two-layer rear part. The front part has, overlying each other, a transparent front support layer with a front print display surface, an adhesive and ink display layer with a front ink display surface, an o ...


4
Sandra F Haas, David J Haas: Patterned indicators. Temtec, Michael E Zall, February 17, 1998: US05719828 (75 worldwide citation)

A patterned indicator is provided which contains latent information. The patterned indicator includes a first substrate having first and second surfaces, the first surface having a uniform pattern printed of an ink thereon. A second transparent substrate having first and second surfaces is also prov ...


5
David J Haas: Long term rapid color changing time indicator. Temtec, Michael E Zall, February 11, 1997: US05602804 (74 worldwide citation)

The time indicator device of this invention is provided with a display layer with at least one defined display region therein. A migration layer is provided which overlies and is attached to the display layer. The migration layer has at least one migration region therein and in use each migration re ...


6
Sandra F Haas, David J Haas: Time indicator. Weingram & Zall, October 15, 1991: US05058088 (71 worldwide citation)

A time indicator is provided which includes a first substrate having first and second surfaces and at least two indicia areas on the first surface. A second substrate having first and second surfaces is also provided. A first chemical agent is provided on each of the indicia areas and a second chemi ...


7
David J Haas: Self-expiring identification band. Temtec, Michael E Zall, July 28, 1998: US05785354 (71 worldwide citation)

An identification band is provided which includes an elongated band having an outer surface, an inner surface and first and second ends. A first chemical composition, e.g., a soluble ink, is distributed on the outer surface of the band proximate the first end. A display region is disposed in the ban ...


8
David J Haas, Sandra Haas, Jody P Sherman: Identification card strip and ribbon assembly. Temtec, Michael E Zall, July 11, 2000: US06086971 (62 worldwide citation)

The identification card strip and ribbon assembly includes a support strip having thereon at least one, and preferably a plurality of identification card blanks removably and adhesively adhered to the support strip. Each identification card blank has a front printing surface for printing indicia the ...


9
David J Haas, Sandra F Haas: Time indicator. Temtec, Michael E Zall, July 27, 1999: US05930206 (60 worldwide citation)

A time indicator comprising a front part and a rear part, the rear part comprising an ink pattern layer overlaying a rear support member. The front part comprises a transparent front support layer, and an opaque adhesive layer having a front ink display surface, the adhesive layer capable of dissolv ...


10
Robert Holt, David J Haas, Brian DiBianco: Time dependent color-changing security indicator. Brady Worldwide, Michael Zall, June 22, 2004: US06752430 (60 worldwide citation)

This invention converts commercially available plastic ID cards, usually made of PVC, and/or electronically printed documents, e.g., laser printed documents, photo copier printed documents, dye-sublimation printed documents, ink jet printed documents, into time dependant, self-expiring badges or doc ...