Patent Law Flashcards
Obtaining a Patent: must go through “patent prosecution” process
o File an application describing the invention to enable the PHOSITA (hypothetical person having ordinary skill in the art) to make and use the invention, 35 USC §112(a).
o Includes a series of numbered paragraphs (claims) stating the exclusionary rights inventor should be entitled to on their invention, §112(b).
o History of reports filed with PTO are called the “prosecution history”
• General Requirements: patent claim must be:
(1) adequately supported by written disclosure; (2) patentable subject matter; (3) useful; (4) new; & (5) nonobvious
Claims
What inventor thinks his right to exclude is.
Only one sentence long.
Each claim separate right to exclude
Comprising of v. Consiting of
“Comprising of” (claimed invention has the listed characteristics below, doesn’t matter about other things it may have) the more you say, the less protection you get (laying out requirements that something must have)
• Presence of something else won’t ruin infringement here
“Consisting of” (exhaustive list, claimed invention has only features listed)
• If any other features are added, no infringement
• Duration
patents exist for 20 years as of filing date, §154(a)(2), as long as 3 maintenance fees are paid (fees 3.5, 7.5, and 11.5 years after grant)
iv. Timing: patent in force up to 20th anniversary of original filing date. Must pay maintenance fees evey 3.5, 7.5, 11.5 years
1. Patent filed sept 1 2010, expires sep 1, 2030
a. The cup patent is a utility patent . Almost all utility patents are written this way. (Making a claim)
i. History.
ii. Identify problem. Very dramatic. melodrama
iii. Solve Problem. Calamity, thank goodness im here
Can the disclosure be broader than the claim itself?
ii. YES It is ok that the disclosure is bigger than the trade. CANNOT be smaller.
4 “Types” of patent infringement
a. Literal: the item falls within the literal scope of each “limitation/element” of the asserted patent claim.
b. Nonliteral: Using the doctrine of equivalents, the items falls outside the literal scope of one of more of the limitation/elements, but for each such limitation there is a substitute that is the functional equivalent.
c. Direct: accused infringer is the one who committed the infringing act
d. Indirect: The accused infringer encouraged or helped someone else to commit the infringing act
i. Common when the claimed invention has many competent parts assembled by an end user.
Patents and dah courts
Patent Prosecution? USPTO to fed cir.
Patent litigation? District ct
• 35 USC § 112(b) (Patent Act on claim definiteness – where theory of “indefiniteness” comes from
o Must specifically point out and distinctively claim (create a boundary that has an inside and an outside; if it fails to do this, the claim failed to serve its purpose)
• Disputed Claim Terms – question of law or fact? Both
o FRCP 52(a)(6): “findings of fact . . . must not be set aside unless clearly erroneous”
Claim scope is a question for the judge, not jury
o The meaning and extrinsic evidence from experts/technical journals/etc. is factual; thus, calls for R. 52(a)(6) clearly erroneous standard
o Ultimate claim determination based on factual finding is a question of law; thus, the legal question has a de novo standard of review
TEVA (molecular weight case)
i. Indefiniteness Claim:
iii. Holding: The appellate court must apply a “clear error” NOT a de novo, standard of review with patent claims with “evidentiary underpinnings.”
1. Held: factual determination is reviewed w/ clearly erroneous standard and defers to trial court (better position to assess; heard witnesses/evidence)
• Patents are both technical & legal documents
o Patent #/prosecution history = intrinsic evidence (ultimate question is legal; reviewed de novo on appeal)
o Technical publications/expert witness opinions = extrinsic evidence (disputed questions are factual; reviewed for clear error on appeal)
o Takeaway: extrinsic = factual; intrinsic = legal
vi. District Court: a person having ordinary skill in the art would know that Teva meant “molecular weight” to mean “peak average molecular weight”; ruled for Teva. On appeal, Ct REVERESED
Adequate Written Disclosure (not as important)
•
Enablement requirement (patent need not disclose what is well known in the art already – must enable phosita)
• Written description requirement
• Best mode requirement (patent must set forth best mode)
o Calls for Claim Definiteness (you want right to exclude, we have to know the boundary of what you’re giving us)
o Teashot v. Green Mountain (Teabag and K-Cup case)
Establishes importance of clarity in claim/importance of language
Teashot 672 patent: “sealed body is constructed of water-permeable material which allows flow of fluid through said sealed body”
GM’s accused item had a plastic body with foil lid that a needle punctures to make hole for water to go through cannot be infringement
• But plastic isn’t water permeable
District Ct/Fed Cir agree w/ accused infringer that there’s no “water-permeable material,” so no literal infringement
• Bc Teashot’s claim depends on water flowing through water-permeable material as the way its product works, and a tin lid that has a hole is clearly not “water-permeable material”
o Nautilus v. Biosig (claim construction/definiteness; electrodes)
must “inform those skilled in the art about the scope of the invention with reasonable certainty”
o Pacing Tech v. Garmin (Fed Cir 2015 – claim construction/meaning)
Ordinary meaning rule gloss on “plain and ordinary meaning”
• Compel departure in only two instances: (1) Lexicography or (2) disavowal; BUT only when CLEAR (if not clear, stick with “plain and ordinary meaning”)
o Start broad and only narrow if forced because we consider invalidating a valid patent is the worst error
• Here, “adapted to producing a sensible tempo”
o Constitutes unmistakable disclaimer (data/playback device [claim language] was just tied to the sensible tempo)
Lexicography: provide your own explicit definition in a patent document
Disavowal: patent document tells you what it’s referring to
i. Enablement:
The test of enablement is whether one reasonably skilled in the art could make or use the invention from the disclosures in the patent coupled with information known in the art without undue experimentation at the time the claim was filed.35 USC 112(a)
1. Experimentation allowed, but must not be undue experimentation. Use “standard of reasonblness” Wands