| 1921 | Bilge Pumps Non-Automatic Submersible Pumps | |
| 1922 | Boat Windscreen Wiper Blade | |
| 1923 | Bilge Pumps Automatic Submersible Pumps | |
| 1924 | Bilge Pump | |
| 1925 | BayStar Outboard | |
| 1926 | Barometer | |
| 1927 | Backsaver Crane | |
| 1928 | Battery Charger GUE2631A | |
| 1929 | Battery Charger | |
| 1930 | Battery Master Switch BEP 721 | |
| 1931 | Battery Master Switch BEP 701 | |
| 1932 | Blower Repair, Overhaul And Maintenance | |
| 1933 | Belt Type Oil Skimmer | |
| 1934 | Belt Drive Spindle | |
| 1935 | Boat-shaped Meeting Table (Wooden Leg) | |
| 1936 | Boltless Shelving System | |
| 1937 | Beveling Machine MF 3i | |
| 1938 | Beveling Machine MF 3iw | |
| 1939 | Beveling Machine MF 3R | |
| 1940 | Bogie Axle | |
| 1941 | Biohazard Autoclavable Bag | |
| 1942 | Barcode Labels | |
| 1943 | Bowl Wheel Chamfering Machine | |
| 1944 | Boltless Shelving System | |
| 1945 | Backwater Protection | |