This chapter focuses on the sustained expansion of industrial design filings as the empirical pivot for examining the entanglement of design, innovation, and intellectual property across pandemic and post-pandemic economies. First, the sustained growth in industrial design applications highlights the increasing importance of aesthetics and user experience as key competitive variables in global value chains. Enterprises leverage differentiated design and brand narratives to create market barriers, making them highly sensitive to imitation and driving demand for IP protection. Second, the multifaceted concept of ‘design’ is defined through behavioral processes, philosophical action, linguistics, and innovation theory. At the heart of design practice lie four guiding principles—artistry, novelty, functionality, and cost-effectiveness—that continually shape and reshape one another, compelling designers to balance aesthetic vision with technological possibility, human needs, and economic realities. Third, the chapter distinguishes four major design domains—product design, environmental design, visual communication design, and service design—clarifying their distinct knowledge traditions and legal requirements. It also outlines the synergistic role of tools such as sketching, digital software, mind mapping, and user personas in cognitive and practical processes. Fourth, by differentiating technology-driven, market-driven, and design-driven innovation paradigms, the analysis emphasizes how design-driven innovation redefines product semantics to create new value propositions in saturated markets. Finally, case studies of IP disputes between China and the U.S., Europe, and Japan illustrate how patent, design, and trademark systems function as instruments of international competition. The findings underscore that original design capabilities and IP strategies must be developed in tandem to transform aesthetic advantages into sustainable competitive barriers.