On the pages about the european and american patents you will find an excerpt out of my inquiry into the patent library in Rijswijk, the Netherlands, that was focused on mouthpieces and ligatures only.
These patents are divided over two pages and classified by origin and chronology. Some entries give only a brief indication of the content data; with others you can click to the entire contents in PDF-format. It is impressive to see how much creativity is documented over the years. The list has some well known, but a lot more unknown names and counts many inventions which have not survived. Probably just as much more ingenuity will never have been documented. It is interesting to see that claims of novelty that you encounter here and there prove to be entirely unjustified: most of it has already been invented and tried out long ago.
Finally it is good to remember that the patent office is not interested in (scientific) truth. That a patent exists, does not mean that the thought behind it is also a correct one.
|Patent no.||alternative no.||date||name||type|
|424 861||1911||single reed mouthpiece for sarrusophone|
|603 056||1-6-'26||Bercioux||chamber form|
|655 634||4-22-'29||Chiron||chamber form|
|702 898||4-18-'31||Carre||metal mouthpiece-neck joint|
|778 530||3-18-'35||Elwarth||reed with a thin spot|
|828 226||5-12-'38||Perrier||adjustable tip opening|
|1 078 574||1954||sidelong support on to the reed||
|593 340||12-30-'32||Seiffarth||chamber form, passage into the neck|
|1 217 758||5-26-'66||Strathmann||adjustable chamber form||
|626 478||7-15-'49||Kjeldsen||adjustably mounted 'floating' reed|
|646 895||11-29-'50||Walton||chamber with interchangeable elements|
|0 055 519||US 4 212 037||1124-'81||Winslow||ligature|
|0 189 223||1-10-'86||Dossecker||adjustable tip opening|
|0 198 541||NL 8501136||4-8-'86||Visser||chamber form|
|WO91\14258||DE P4007 386.6||9-19-'91||Börner||chamber form|
|0 499 070A1||IT MI91A000396||1-24-'92||Barbaglia||ligature|
|0 509 963A2||4-14-'92||Haferkorn||calculations on chamber form|
|0 604 267A1||FR 9 215 717||12-14-'93||Vandoren||ligature with eccenters|
|0 714 086||FR 9 414 025||5-29-'96||Vandoren||ligature|