Inventing and revising products is a crucial part of any business, and most companies have a dedicated department or team to handle these tasks. Depending on the company and industry, this department may go by different names, but it typically falls under the broader umbrella of research and development (R&D).

In large companies, the R&D department may be divided into smaller teams or sub-departments, each with a specific focus. For example, one team may be responsible for developing new products, while another team may work on improving existing products. The department may also include engineers, designers, and scientists who collaborate to create new products or improve upon existing ones.
In the retail industry, product development is often overseen by the merchandising department. This department is responsible for planning and executing the purchase, marketing, and sales of products. Merchandising professionals work closely with manufacturers to ensure that the products meet their company’s standards and target audience.
In addition to the R&D and merchandising departments, many companies also have quality control and assurance teams. These teams work to ensure that products meet the necessary safety and quality standards and are compliant with any regulatory requirements.
Overall, the department responsible for inventing and revising products can vary depending on the company and industry. Still, it usually falls under the broader R&D or merchandising department and often works in collaboration with other teams to create new products or improve upon existing ones.