I have recently completed the arduous task of submitting my PhD thesis, which focuses on the history of Ontology in German philosophy from Wolff, through Kant, to Hegel. I am tracking the history of both the name or term 'ontology' and of the conception of what becomes known as the discipline of ontology. The history of the former starts with Lorhard in 1606. The history of the latter is much longer and in talking about it I focus mostly on Aristotle and Thomas Aquinas. Besides providing research on a fairly neglected area of the history of metaphysics (not Aristotle, Kant, or Hegel, to be clear, but the history of ontology) the thesis dispells some common myths and misconceptions about ideas and historical figures in philosophy. I will not say more here in order to avoid spoilers.
Since life is short and PhD even shorter there are some parts of this trajectory I need to leave for possible future engagements. By this I refer to topics such as Suárez' reconceptualisation of the Thomist idea of the relation between Being and Essence and its impact on Descartes and hence Early Modern Philosophy, as well as post-Hegelian history of ontology such as the trajectory from Hegel to early 20th century Neo-Kantianism and Heidegger. At the moment, I am writing an article on the background and purpose of the 'ontological' part of Kant's critique of the ontological proof.
My greatest weakness are grammatical articles.