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
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 ...


4
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 ...


5
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 ...


6
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 ...


7
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 ...


8
David J Haas, Sandra F Haas: Long term rapid color changing time indicator. Temtec, Michael E Zall, May 27, 1997: US05633835 (57 worldwide citation)

A time indicator that rapidly changes color after a specific time interval is provided. The time indicator includes a base substrate with colored dye deposited on a first surface; a barrier applied over the colored dye; and a substrate having an adhesive on a first surface thereof. The substrate and ...


9
Robert Holt, David J Haas: Visually changing paper time indicator employing controllable barrier. Temtec, Michael E Zall, September 17, 2002: US06452873 (56 worldwide citation)

A time indicator rapidly changes color after a specific time interval. The indicator comprises “back part” that includes a base substrate with a colored dye or colorant deposited on a first surface. A colorant impermeable barrier layer overlays the colorant or colored dye. The indicator further comp ...


10
Myron H Frommer, David J Haas: Electronic time badge. Temtec, Michael Zall, September 7, 1999: US05947369 (53 worldwide citation)

A security system is provided that includes a time dependant security badge to be worn by a person. The security badge includes a metalized reflective film having an upper surface and lower surface, the upper surface having an initial reflectivity. An oxidizing film for electrochemically oxidizing t ...