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This paper aims to map the evolution of hydrogen-based technologies (HBTs) by examining the patenting activity associated to these technlogies from 1930 to 2020. In doing so, the study provides a novel perspective on the development of HBTs and offers implications for managers and policymakers.

We collected patent data at the level of patent families (PFs). Our sample includes 317,089 PFs related to hydrogen production and 62,496 PFs to hydrogen storage. We examined PF data to delineate the state of the art and major technical advancements of HBTs.

Our analysis provides evidence of an increasing patenting activity in the area of HBTs, hence suggesting relatively high levels of expectations on the economic potential of these technologies. US and Japan hold the largest proportion of PFs related to HBTs (about 60%), while European applicants hold the highest proportion of highly cited PFs (about 60%). While firms represent the applicant with the highest share of PFs, our analysis reveals that firms holding HBT PFs are primarily from the chemical sector.

While our analysis is limited to examining patent data which capture some aspects of the innovation activity around HBTs (namelly, patented inventions), our study enriches existing literature by performinng a patent analysis on a much larger sample of data when compared to previous studies.

Two main implications emerge from our study. Firstly, there seems to be an urgent need to support the emergence of a dominant design so as to facilitate the consolidation and diffusion of the HBTs, hence the transition to a more sustainable energy production. Secondly, the majority of HBT PFs are held by a small number of countries. This, in turn, suggests opportunities to develop cross-country cooperation (e.g. international agreements, research and technology offices) to support the development and adoption of HBTs globally.

Considering the results obtained in this study, from a social point of view, the attention that organizations have paid to hydrogen related technologies is evident. This suggests that the development HBTs can function as a social enabler for a sustianable energy transition.

Extant research has focused on the individual components of the hydrogen chain. As a result, we lack a comprehensive understanding of the progress made in the area of HBTs. To address this gap, this study examined HBTs by focusing on both production and storage technologies since their initial developments, hence adopting an observation period of about 70 years.

The purpose of this paper is to investigate the innovation performance of R & D collaborations from an institutional perspective.

The authors conduct an empirical analysis based on 487 joint-inventions developed by 50 US biotechnology firms from 1985 to 2002.

The authors find that institutional diversity between the partners, as reflected by firm-university partnerships, positively affects the value of their joint-innovation. This effect is reinforced by the firm’s behaviour in searching for knowledge broadly (scope) and in the non-commercial realm (science-based nature). Conversely, as the firm searches for knowledge in few domains areas (depth), the positive effect of institutional diversity is reduced.

The study contributes to literature on partner selection, university-industry collaborations, balance between exploration and exploitation, as well as to research on the interdependence between firm’s external and internal resources.

The study reveals that when firms innovate together with universities, this promotes the development of high valuable innovations. In addition, it emerges that to fully capture the benefits of these collaborations, firms have to develop a wide set of competencies supported by a scientific approach in problem solving.

The study sheds new light on the dynamics favouring the joint development of valuable innovations by focusing on the impact exerted by partners’ institutional differences, as revealed by how norms and rules shape innovation’s modes.

Social network theory and analytic tools have been increasingly used to examine the interaction between science and technology. Recently, researchers have paid attention to the role of publishing inventors, that is, individuals bridging the collaborative networks between authors (co-authorship network) and inventors (co-invention network). Building on this research, we study how publishing inventors’ structural position in the joint co-authorship and co-invention network affects the quality of the inventions to which they contribute. Specifically, we identify publishing inventors who play a pivotal role in holding the two networks together: their removal not only increases the network fragmentation but also disconnects the joint co-authorship and co-invention network. We define these publishing inventors as cutpoints and find them to contribute to inventions of greater quality. We situate the analysis within the context of the emerging field of nanotechnology. The theoretical and managerial implications of the results are discussed.

The purpose of this paper is to investigate how universities' learning behavior (explorative or exploitative) and network structure (weak or strong inter‐organizational ties) can affect their capability to collect and diffuse knowledge, and thus to act as knowledge gatekeepers.

The research methodology is based on the longitudinal study (from 2000 to 2007) of three UK universities (University of Cambridge, London's Global University, and Imperial College London), located in the area of London and selected on the basis of their knowledge mobility. In particular, to evaluate the knowledge mobility for each university, the paper considers the collaborative R&D relationships established by each university, in terms of joint‐patents registered at the European Patent Office (EPO).

The analysis has revealed that the universities' knowledge mobility is positively affected by both the explorative learning behavior and the establishment of strong inter‐organizational ties. Moreover, results have shown that an increase of the explorative speed can entail a less positive effect of the exploration on the universities' knowledge mobility, since they can become less able to consolidate and implement the acquired new knowledge.

On the basis of these results, the present research provides interesting implications. In fact, recognizing the importance of explorative learning mechanisms, universities should enlarge and diversify their competencies and technological bases in order to be more effective knowledge sources and gatekeepers. Nevertheless, this shift towards new technologies and scientific fields should occur gradually, for instance towards more similar and contiguous technologies, so guaranteeing the necessary strengthening of skills and capabilities. Referring to the universities' network structure, the research suggests the importance of strong inter‐organizational ties as mechanisms that enable the transfer of knowledge. Hence, universities should promote the formation of stable and long‐lasting alliances and collaborations for favouring the creation of a trustworthy environment where knowledge can be exchanged and innovations rise.

The study contributes to the existing literature on knowledge gatekeepers, identifying its main performance, measuring it, and analyzing the impact exerted by two factors, as learning behavior and network structure.