Brief Fact Summary. Ethicon (Plaintiff) brought suit against Surgical (Defendant) claiming patent infringement.Â Defendant argued by claiming a co-inventor of the invention had provided them with a license to use the patent.
Synopsis of Rule of Law. (1) Testimony supported by sketches is adequate to show co-invention clearly and convincingly.Â (2) Regarding even a single claim, a joint inventor enjoys a presumption of ownership of the entire patent.
Issue. (1) Did Choi (Defendant) provide enough evidence with enough support to show clearly and convincingly co-invention of Claims 33 and 47?Â (2) Do the agreement terms of the license agreement limit it to only the part of the invention contributed by Choi (Defendant) or to the entire part?
Held. (Rader, J.)Â (1) Yes.Â Enough evidence was presented by Choi (Defendant) with enough support to show clearly and convincingly co-invention of Claims 33 and 47.Â Each joint inventor must contribute to the formation of the invention.Â Only part of the work that produces the invention needs to be performed by each.Â Therefore, a contribution to one claim is enough to be considered a co-inventor.Â In this case, Choi (Defendant) envisioned part of the invention stated in Claim 33.Â A picture of Claim 33 is illustrated in figures 18 and 19 of the patent.Â Choi (Defendant) thought of and contributed to two features contained in the picture, locating the blunt probe in the shaft and allowing it to pass through an opening on the blade surface, therefore, contributing to the subject matter of Claim 33.Â The elements contributed by Choi (Defendant) are included in Claim 33.Â His contribution is supported by his testimony that it was his idea to extend the blunt probe through an opening in the trocar blade.Â To corroborate his testimony, he provided a series of sketches he did while working with Yoon (Plaintiff).Â Based on many circumstantial aspects, for example Choi’s (Defendant) background in electronics and expert testimony that some of the sketches dealt with sophisticated concepts that would only be understood by an electrical engineer or technician, it is obvious that Choi (Defendant) was presenting ideas to Yoon (Plaintiff) and not the other way around.Â In addition, Choi (Defendant) also contributed to the conception of the subject matter of Claim 47.Â The invention in Claim 47 is illustrated in figures 34-36.Â The specification discloses the rod detaining method invented by Choi (Defendant).Â His sketches and oral testimony by the parties verify this.Â (2) No.Â The terms of the license agreement do not limit it to only the part of the invention that Choi (Defendant)Â contributed, but instead Choi (Defendant) enjoys a presumption of ownership in the entire part.Â Regarding even one claim, a joint inventor enjoys presumption of ownership in the entire patent.Â Therefore, Yoon (Plaintiff) must share ownership of all the claims with Defendant, even the ones he invented by himself.Â Defendant therefore had the right to license rights in the entire patent.Â Because Defendant is a co-inventor, he is also a joint-owner of the patent.Â He did not consent to the suit against Surgical (Defendant) and therefore the motion to dismiss is valid.Â Affirmed.
A patented invention may be the work of two or more joint inventors.View Full Point of Law
Discussion. The majority seems to have disregarded equity among joint owners.