Dans leurs processus d’innovation, les grandes entreprises subissent un manque de ressources entre Recherche et Développement appelé vallée de la mort. Le groupe Safran s’est doté d’une direction de l’innovation afin de le compenser. Son fonctionnement est fondé sur une logique d'échange avec les sociétés du groupe. Mais dans les phases amont, lorsque les échanges comportent des inconnus, ils s’interrompent brutalement. En particulier des fiches idées issues de DKCP ne sont pas explorées. Cette recherche-intervention ambitionne donc d’établir un modèle d’action collective pour échanger dans l’inconnu. Elle défend la thèse que dans l’inconnu, vendeurs et acheteurs de technologies innovantes s’engagent dans la conception de la frontière entre des technologies et des environnements.Face aux limites des modèles d’échange marchand, de décision, d’intéressement et de créativité, cette thèse adopte un modèle d’échange intégrant l’inconnu et un cadre analytique issu des théories de la conception innovante. Elle propose le modèle de l’engagement conceptif de ressources. Elle explicite les limites de l'outil conventionnel d'échange de technologies dit Technology Readiness Levels adopté chez Safran. Elle propose alors de modéliser les échanges entre vendeurs et acheteurs de technologies comme l’exploration de la frontière Technologie-Environnement en suivant le formalisme C-K T / C-K E construit. Finalement la méthode Pilotage de l'Exploration Par les Invariants Technologie-Environnement (PEPITE) est élaborée avec la direction de l'innovation Safran sur la base de deux cas d’exploration ayant effectivement passé la vallée de la mort durant l’intervention des chercheurs. / Innovation processes of large companies experience a lack of resources between Research and Development, i.e. the valley of death. Safran created its Innovation Department to counterbalance. It is based on exchanges with the subsidiaries. However such exchanges cannot be processed in most early stages, when they include unknowns. For instance, ideas generated through the DKCP method remain unexplored. This intervention-research aims at establishing a model of collective action to exchange in the unknown. It defends the thesis that, in the unknown, sellers and buyers of innovative technologies engage in the design of the boundary between technologies and environments.Facing the limits of classic models of exchanges of economy, decision, intéressement and creativity, this thesis adopts a design-theories framework. It proposes the model of design engagement of resources. It explains the limits of a common tool for exchanging technologies, i.e. Technology Readiness Levels. It proposes to model exchanges between seller and buyer as the exploration of the Technology-Environment boundary. To do so it constructs the C-K T / C-K E formalism. Finally, the method Steering Exploration Through Technology and Environment Invariants ("Pilotage de l'Exploration Par les Invariants Technologie-Environnement" (PEPITE) in French) is constructed in collaboration with Safran Innovation Department. It is based on two cases of explorations which passed the valley of death within the researchers intervention.

In most cases new technology emergence does not guarantee overnight success nor is it developed overnight, rather it is a result of industry expertise spanning over several fields of research. 3D bioprinting is an industry that promises revolutionary implications for healthcare and scholars are discussing application areas such as tissue for oncology research, tissue for patient specific drug development and lastly complex organs for implantation. The promises and strides of the industry pose new prospects in healthcare, for instance printing new skin for burn victims & drug development all while being patient specific. The promises of bioprinting are practices that will lead to improved quality of life whether it be in the form of medicine or a new organ. The industry is characterized by fast pace and rapid technological advancements, research has explored these technological advancements and explained them in detail, but information on the market remains scarce. To contribute to filling this gap the thesis explores what the state of the market currently is and what the stage of market development is.  In order to explore how the market has developed and the current state of it a longitudinal case study, in Sweden which is one of the most innovative countries in the world was conducted. Newspaper articles from three news outlets were collected, two of which are Swedens most reputable publishers regarding new technology and business and economic development, the third is an industry specific outlet to biotechnology advancement. This resulted in finding that while the dialog of bioprinting is promising, the degree of readiness remains the same, furthermore it shows that the industry is heavily dependent on external actors to further develop the market and technology. It was also found that there is no shortage in actors spanning across various industries that collaborate with bioprinting firms since not all industries need the full capacity of the technology that is necessary to print complex organ structures. It can be stated that while the bioprinting market is evolving the development of it is in early stages and is far from being established.