|
Date |
Patent Name |
Improvement |
Inventor |
| 1903 |
Upright Piano |
Improvement on the capo tasto bar and plate. |
Henry Ziegler |
| 1907 |
Case for Upright Pianos |
Innovation on upright case. |
Frederick Steinway |
| 1908 |
String-Frame for Upright Pianos |
Innovation on case for uprights. |
Henry Ziegler |
| 1911 |
Lid for Upright Pianos |
Introduction of sliding key lid for uprights. |
Theodore E. Steinway |
| 1917 |
Sostenuto Device for Pianos |
Introduction of sostenuto pedal for grands. |
Theodore E. Steinway |
| 1923 |
Trackerboard for Player Pianos and Organs |
Innovation of tracker bar. |
Paul H. Bilhuber |
| 1931 |
Piano Key Mounting |
Innovation of key mounting system. |
Frederick A. Vietor |
| 1932 |
Piano String-Frame |
Innovation of cast-iron plate and capo tasto bar. |
Stanley Weber |
| 1932 |
Key Mounting for Piano Action |
Further innovation of previous patent. |
Frederick A. Vietor |
| 1933 |
Method of Heat Treating Piano String Frames |
Innovation for frame preperation. |
Stanley Weber |
| 1934 |
Piano Construction |
Agraffe pin Improvement. |
Theodore E. Steinway |
| 1934 |
Piano Scale |
Further innovation of duplex scale. |
Paul H. Bilhuber |
| 1935 |
Piano, and More Particularly to the Mounting of Strings Thereon |
Improvement of agraffe. |
Paul H. Bilhuber |
| 1936 |
Piano Keyboard |
Improvement on key rail pin balance. |
Frederick A. Vietor |
| 1936 |
Piano and Like Musical Instruments Using Strings |
Improvement on capto tasto bar. |
Paul H. Bilhuber |
| 1936 |
Soundboard for Pianos and Other Instruments or Devices Using Soundboards |
Improvement on soundboard mounting. |
Paul H. Bilhuber |
| 1937 |
Soundboard for Pianos |
Improvement on soundboard mounting. |
Paul H. Bilhuber |
| 1937 |
Design for a Piano Case |
New design for upright piano. |
William Zaiser |
| 1937 |
Keyboard Instrument, Such As A Piano, Clavier, Grand Piano, Etc. |
Further innovation of previous patent. |
Paul H. Bilhuber |
| 1938 |
Soundboard for Pianos |
Further innovation of previous patent. |
Paul H. Bilhuber |
| 1938 |
Acoustic Translating Device |
Design for mounting amplifying speaker. |
Paul H. Bilhuber |
| 1938 |
Design for an Upright Piano |
New design. |
Everett Worthington |
| 1938 |
Piano |
Design for a sound deflector for grands. |
Dunbar Beck |
| 1938 |
Touch Weight Regulating Device |
Manufacturing innovation. |
Steinway & Sons |
| 1939 |
Design for a Piano Case |
Special design for White House piano case for Franklin D. Roosevelt. |
Eric Gugler |
| 1939 |
Design for a Lyre for a Piano |
Specific part design for White House piano for Franklin D. Roosevelt. |
Eric Gugler |
| 1939 |
Design for a Piano Leg |
Specific part design for White House piano for Franklin D. Roosevelt. |
Eric Gugler |
| 1939 |
Design for a Grand Piano |
Complete piano design for White House Piano for Franklin D. Roosevelt. |
Eric Gugler |
| 1941 |
Keyboard Instrument, Such As a Piano, Clavier, Grand Piano, Etc. |
Further improvement of previous patent. |
Paul H. Bilhuber |
| 1944 |
Operating Means for Piano Actions |
Innovation for raising keyboard height in uprights. |
Paul H. Bilhuber |
| 1944 |
Piano Pin Block |
Innovation to combine the pinblock and plate. |
Paul H. Bilhuber |
| 1945 |
Moulded Article Producing Apparatus |
Innovation for molding. |
Paul H. Bilhuber |
| 1945 |
Strip Element Gluing Method and Apparatus |
Innovation for "continous-feed edge-gluing" |
Paul H. Bilhuber |
| 1947 |
Improvements in or Relating to the Treatment of Wood |
New method for treating wood. |
Paul H. Bilhuber |
| 1947 |
Improvements in or Relating to Method and Apparatus for Producing Molded Products |
Further innovations on previous patent. |
Paul H. Bilhuber |
| 1948 |
Apparatus for Edge Gluing Strip Elements |
Further innovation on previous patent. |
Paul H. Bilhuber |
|
Note: Other patents were registered by employees of Steinway & Sons
in 1943 for making gliders and airplanes.
