Archived challenges

These are the challenges that have expired or been solved.

12 000.00 EUR

Water And Oil Repellent

Submission deadline: Apr 16, 2017

10 000.00 EUR

Reducing Noise Pollution From Train Stations

Submission deadline: Jul 21, 2014

6 000.00 EUR

Lead Acid Battery Charge Estimation

Submission deadline: Jun 16, 2014

7 000.00 EUR

Use for Distillation Bottoms Product

Submission deadline: May 1, 2014

10 000.00 EUR

New Packaging Solution for Flat-pack Furniture

Submission deadline: Apr 10, 2014

2 000.00 EUR

Reducing Piano Sound in Residential Buildings

Submission deadline: Mar 9, 2014

30 000.00 EUR

Preserving Crunchiness in an Aqueous Base

Submission deadline: Jan 19, 2014

5 000.00 EUR

Transparent lid for water bottle

Submission deadline: Jan 15, 2014

9 000.00 EUR

Database Anonymization Techniques

Submission deadline: Sep 1, 2013

15 000.00 EUR

Improving Drug Delivery Systems

Submission deadline: Sep 1, 2013

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