| 1921 | PLUTO | |
| 1922 | Plastic Tile Spacer | |
| 1923 | PVC Bar Chair | |
| 1924 | PVC Wheel Spacer | |
| 1925 | PVC Waterstop | |
| 1926 | PVC Corner Guard | |
| 1927 | PVC Rough Stair Edging | |
| 1928 | PVC Corner Chamfer | |
| 1929 | Plastering Corner Bead | |
| 1930 | PVC High Speed Door | |
| 1931 | PVC Pipe Fittings | |
| 1932 | PVC Water Pipes | |
| 1933 | PU/Epoxy Floor Coating | |
| 1934 | Permatex Pipe Joint Compound | |
| 1935 | Pulleys and Snatch Blocks | |
| 1936 | Polyester Webbing Slings | |
| 1937 | Pagoda Umbrella | |
| 1938 | Polypropylene Fume Hood | |
| 1939 | Perchloric Acid Fume Hood | |
| 1940 | Piston Compressor | |
| 1941 | Plastic Soap Dispenser | |
| 1942 | Pure Brass Chrome Round Rinser Showy 2471 | |
| 1943 | Pin and Bushing (Loader Pin) | |
| 1944 | Plaster Ceiling Renovation | |
| 1945 | Pallet Truck | |
| 1946 | Palladium Plating | |
| 1947 | Pink Gold Colour Plating | |
| 1948 | Plug-In Serve-Over Type Open Showcases | |
| 1949 | PU Sleeve | |
| 1950 | PVC Strip Curtain | |