Buluş sahibi patent vekiliyle konuştu.

The sentence breaks down like this:

• Buluş sahibi = the subject
• patent vekiliyle = with the patent attorney/agent
• konuştu = spoke / talked

So the overall pattern is:

subject + person talked with + verb

This is a very normal Turkish sentence shape, because Turkish usually puts the main verb at the end.

Because both buluş sahibi and patent vekili are noun compounds.

In Turkish, a very common compound pattern is:

Noun + Noun-(s)I

That final -(s)ı / -(s)i / -(s)u / -(s)ü is historically a possessive ending, but in compounds it often just functions as part of the standard compound form.

So:

• buluş sahibi = owner of the invention / invention owner
• patent vekili = patent attorney / patent agent / patent representative

Important: this -i is not the accusative ending here.

This is a very common question.

• buluş sahibi is a compound, more like a label or category: invention owner
• buluşun sahibi means the owner of the invention, with a more explicit possessive relationship

So:

• buluş sahibi = compound form
• buluşun sahibi = genitive + possessed noun

Compare:

• patent vekili = patent attorney
• patentin vekili = the representative of the patent

In many contexts, buluş sahibi sounds more like a set term.

The ending -yle here means with.

It comes from ile, which means with (and sometimes and).

So:

• patent vekili ile = with the patent attorney
• patent vekiliyle = with the patent attorney

When ile attaches to a word ending in a vowel, Turkish uses a buffer y:

• vekil + ile would not fit here
• vekili + ile becomes vekiliyle

So patent vekiliyle konuştu means spoke with the patent attorney.

Yes. That is also correct.

Both of these are possible:

• patent vekili ile konuştu
• patent vekiliyle konuştu

The attached form is very common and natural. In modern Turkish, learners will often see the attached form a lot.

Because konuşmak normally works with -le / -la / ile for the person you talk with.

So Turkish says, literally:

• someone-with talked

Examples:

• Avukatla konuştu. = He/She talked with the lawyer.
• Müdürle konuştum. = I talked with the director.

So in your sentence, patent vekiliyle is not a direct object. It is a with-phrase.

Konuştu is:

• simple past tense
• third person singular

It comes from the verb konuşmak = to speak / to talk

So konuştu means:

• he/she talked
• he/she spoke
• sometimes it talked/spoke, depending on context

In this sentence, it most naturally means he/she talked.

Because Turkish often leaves subject pronouns out when they are not needed.

So instead of saying:

• O buluş sahibi patent vekiliyle konuştu

Turkish very naturally just says:

• Buluş sahibi patent vekiliyle konuştu

The subject is already clear enough from the sentence.

Also, Turkish third person singular does not show gender, so konuştu can mean:

• he spoke
• she spoke

Context tells you which one is meant.

Because it is the subject of the sentence.

Subjects in Turkish are usually in the bare form (often called the nominative), which has no visible ending.

So:

• Buluş sahibi patent vekiliyle konuştu. = The invention owner talked with the patent attorney.

But if you changed its role, you would add a different ending:

• Buluş sahibini gördüm. = I saw the invention owner.
• Buluş sahibine sordum. = I asked the invention owner.

So the lack of an ending here is normal.

Not completely, but this version is the most neutral and natural.

Turkish often puts the verb last, and other parts can move around for emphasis.

Neutral order:

• Buluş sahibi patent vekiliyle konuştu.

A different order is possible:

• Patent vekiliyle buluş sahibi konuştu.

That second version is still grammatical, but it gives a different emphasis, roughly highlighting the invention owner as the one who talked.

So the sentence is not completely fixed, but the original order is the most straightforward.

Because Turkish does not have articles like English a/an and the.

English must choose:

• a patent attorney
• the patent attorney

Turkish usually does not mark that in the same way. Context does the job.

So:

• patent vekili could be interpreted as a patent attorney or the patent attorney, depending on context
• buluş sahibi can also depend on context

If Turkish wants to be more specific, it can use words like:

• bir = a / one
• bu = this
• o = that / the one already known from context

But in many ordinary sentences, no article is needed.

Yes, ile can sometimes mean and, especially in more formal or written styles.

For example:

• Ali ile Ayşe = Ali and Ayşe

But in this sentence, patent vekiliyle konuştu, it clearly means with, because it is attached to a noun phrase before the verb konuştu.

So here the meaning is:

• talked with the patent attorney

not

• the patent attorney and talked, which would not make sense.