
WTR 1000 (2022)
Two of its stars are Rainer Schultes and Constantin Kletzer, both of whom “are incredibly knowledgeable and easy to work with. They anticipate the needs of clients before they even ask”. “Schultes has a perfect understanding of his field and an excellent approach to IP matters”; while Kletzer is a “fabulous lawyer who easily comprehends the reality of international business”.

MIP IP Stars 2021
Constantin Kletzer was named an IP Star 2021 for Patents and Trademarks

JUVE Österreich IP (2021)
Bewertung: Geistwert etwa hat es in den sieben Jahren seit ihrer Gründung nicht nur geschafft, ihren Phantasienamen als Bestandteil des Kanzleinamens ins Firmenbuch aufzunehmen, sondern hat sich zu einer der marktführenden Kanzleien im Marken- und Wettbewerbsrecht etabliert. […]
Die fünf Partner der Wiener Boutique haben sich zu starken Herausforderern der Marktführer entwickelt. Wettbewerber heben die große Präsenz des Teams in IP-Prozessen hervor. Ein Highlight war zuletzt die Vertretung von Red Bull gegen Bullsone, die zu einer substantiellen Ausweitung der Markenrechte und einem unionsweiten Unterlassungstitel geführt hat. Ein weiteres Beispiel ist die Vertretung des russischen Optikproduzenten Krasnogorsky Zavod gegen die Lomografische AG zur Vollstreckung eines erwirkten Schiedsspruches und einer lauterkeitsrechtlichen Gegenklage. Partnerin Messner war zuletzt als Vorsitzende des Schiedsgerichts in Mailand in einem internationalen Markenverletzungsfall einer Luxusmodemarke international präsent.
Einen Erfolg in eigener Sache verbuchte die Kanzlei mit einer Grundsatzentscheidung vor dem OGH, durch die sie ihren Phantasienamen Geistwert als Rechtsanwaltsfirma ins Firmenbuch eintragen konnte. […] Insbesondere bei Pharmaklagen spielt die Kanzlei in der ersten Liga mit und vertritt beispielsweise Genentech und Hoffmann La Roche gegen Sandoz im internationalen Streit um das Krebsmedikament Rituximab. Daneben begleitet das Team auch mehrere SPC-Verfahren. In große internationale Verfahren wurde es zuletzt auch durch seine guten Kontakte zu führenden Patentteams in Deutschland und UK eingebunden.
Seit ihrer Gründung sind der partnerzentrierte Ansatz und die enge Zusammenarbeit der Partner untereinander Markenzeichen der Kanzlei. Ob sich dieses Konzept langfristig trägt oder die bisher dynamische Entwicklung bremst, muss sich noch zeigen. Die Zeit, die andere Kanzleien in Nachwuchsförderung investieren, nutzt Geistwert bisher für die Entwicklung von IT-Lösungen für ihre Mandanten.
Stärken: Konsequente Ausrichtung auf IP-Themen mit partnerzentriertem Ansatz; Verletzungsprozesse um Pharmapatente.
Schwerpunkte: Umfangreiche Beratung im Marken-, Muster- und Wettbewerbsrecht. Schwerpunkt bei Patentverletzungsprozessen in der Pharma- und Maschinenbaubranche. Daneben Beratung der Branchen Tourismus und Automotive. Auch Markenverwaltung (knapp 900 Marken).

JUVE Österreich IP (2021)
Oft empfohlen: Constantin Kletzer („im Urheberrecht fachlich erste Wahl“, Wettbewerber); im Patentrecht haben sich die Partner Constantin Kletzer und […] für ihre Prozessvertretung einen hervorragenden Ruf erarbeitet.

iam Patent 1000 (2021)
Trailblazer GEISTWERT is hailed as “a ground-breaking firm that has changed the face of the market. There is no other comparable set-up, where five innovative partners are all stars in the IP field”. “The firm works on a partner level, which gives clients utmost confidence in its super-clear results. Its response times are ultra-quick and its entrepreneurship allows the team to fully see and understand each company’s commercial goals.”

iam Patent 1000 (2021)
Contentious firepower is provided in abundance by […] Constantin Kletzer. Kletzer is also highly recommended: “Quick, sharp and efficient, he is a top choice.”

trend Anwaltsranking 2021
Vier GEISTWERT Partner wurden im österreichischen „trend“ Ranking (2021) erneut ausgezeichnet, Max Mosing sogar doppelt, und zwar: Max Mosing für Medienrecht und Datenschutzrecht, Rainer Schultes für (unlauteres) Wettbewerbsrecht, Constantin Kletzer für Marken-, Urheber- und Patentrecht sowie Juliane Messner für ihre Beratung von Start-Ups.

Legal 500 (IP, 2021)
IP, IT and TMT boutique firm GEISTWERT fields five dedicated partners with a strong focus on patent and trade mark litigation, design law and copyright law. In terms of patent litigation, the team is particularly adept at representing clients in the biochemistry, biotech, chemistry and pharmaceutical industries. The group also has notable strength in trade mark portfolio management and makes use of its own legal tech applications to facilitate such projects. Founding partners Constantin Kletzer, Juliane Messner, Max Mosing, Alexander Schnider and Rainer Schultes are the key names. Testimonials: “GEISTWERT is the coolest IP/IT law firm in Austria. With 5 partners handling all matters by themselves, you get a unique think tank and one or more lawyers handling your agendas with great experience, not only from a legal but also from a business perspective. In contrast to firms using (senior) associates, salary partners and other staff who are not entrepreneurs themselves, this is priceless for me.”; “Very nice good and pragmatic people, not very old-fashioned Austrian. Very informal good advice for international clients.”; “Alexander Schnider continues to impress since the day we started working together. Alexander’s most important strength is that he does not only know all the legal details and case law about Austrian IP and IT matters, but more importantly also the video game business as such and therefore, most importantly, also the positions and desires of the stakeholders in the industry and thus also of our contract partners. This is tremendously helpful when negotiating contracts as you simply cannot achieve the best results when you don’t know about the business goals and needs of the companies that are involved in a video game deal.” Constantin Kletzer, Max Mosing and Rainer Schultes are explicitly mentioned as “Leading Individuals” in IP.

Legal 500 (Privacy & Data Protection, 2021)
TMT, IP and data privacy boutique GEISTWERT has a strong track record in data protection that extends beyond the introduction of GDPR. Jointly led by Juliane Messner, Max Mosing, Alexander Schnider, Rainer Schultes and Constantin Kletzer, the practice is particularly experienced in advising finance, pharmaceutical and life sciences clients. To assist with GDPR implementation, the firm is able to call on its home-grown GDPR-tool. The fully bilingual and dual-qualified Messner is also in charge of the dedicated Italy desk, and Mosing is a CIS-certified Data Privacy Officer. Testimonials: “Communication is fast, competent and uncomplicated is probably the “secret of success” for GEISTWERT on the Austrian market. It is undoubtedly unique in Austria that so many partners in a law firm can serve the same area of law at such a high level – really a pleasure working with the GEISTWERT team”; “All partners are easy to reach, competent, uncomplicated and have at least basic knowledge of the projects of the other partners. That is definitely unique in Austria.” Juliane Messner is explicitly mentioned as “Leading Individual” in Data Privacy And Data Protection.

Legal 500 (TMT, 2021)
The team at IP and IT boutique GEISTWERT has a core focus on classic media, internet communication and high-tech matters with a strong presence in software and technology development, licensing and e-commerce. Constantin Kletzer, Juliane Messner, Max Mosing, Alexander Schnider and Rainer Schultes are equally involved in TMT work, with the dual-admitted Messner also in charge of the firm’s Italy Desk, which often assists publishing houses and tourism clients. Testimonials: “All partners are easy to reach, competent, uncomplicated and have at least basic knowledge of the projects of the other partners. That is definitely unique in Austria!’“; “My primary GEISTWERT contact is Max Mosing. However, it is impressive how the other partners from GEISTWERT can take over immediately if needed; the GEISTWERT internal communication seems to work just great.”’

Chambers Europe IP (2021)
Ranked in Gold Tier: What the team is known for: Increasingly visible firm, moving up to the top ranking due to its IP service comprising patent and trade mark-related advice, including portfolio management and infringement litigation. Additional experience in domain name as well as licence agreements and copyright disputes. Also assists with counterfeiting and customs measures. Attracts clients from various industries, including fintech, food and drink, life sciences and construction. Strengths: Source endorse the firm’s efficiency, stating: „All the partners are helpful, and in terms of responsiveness they deserve a gold medal. They also guarantee high quality.“ One client enthuses: „It is a think-tank of great and curious minds which no other firm can offer at this level.“

Chambers Europe IP (2021)
Constantin Kletzer advises clients from a range of sectors, including gaming and media, on both contentious and non-contentious trade mark issues. He also assists with patent litigation and licence agreements. One interviewee states: „Constantin Kletzer is a brilliant attorney with excellent legal skills. He is focused on the client’s goals and needs, and delivers work results.“

Chambers Europe TMT (2021)
What the team is known for: TMT boutique offering dependable expertise in IT and related IP matters. Noted for high-quality work in software contracts and game development. Additionally handles related IP aspects, especially copyright and trade mark matters. Further areas of activity include data protection, international e-commerce and IT outsourcing. Often seen advising technology startups as well as numerous clients in the media, entertainment and electronics industries. Represents state-owned and private companies on both domestic and multi-jurisdictional matters. Strengths: A client describes the team as „dedicated, hard-working but fun, and always up to date. They recognise trends and set standards.“ Another satisfied client enthuses: „In any area that we need legal advice for, their expertise seems highly profound and state-of-the-art. If some matters are somewhat unrelated to their specialisation, their international network allows them to easily reach out to other law firms to enquire about their view on the matter.“

Chambers Global IP (2021)
What the team is known for: Offers a well-regarded comprehensive IP service with a particular focus on patent and trade mark-related advice, including portfolio management and infringement litigation. Additional experience in domain name and co-existence matters as well as licence agreements and copyright disputes. Also assists with counterfeiting and customs measures. Attracts clients of various industries, including fintech, food and drink, life sciences and construction.

Chambers Global IP (2021)
Constantin Kletzer is a well-respected and experienced specialist for patent disputes. He assists international clients from various sectors with enforcement proceedings, often representing global life sciences corporations before Austrian courts as part of multi-jurisdictional litigation. Kletzer is also active on trade mark matters, including filing and clearing up non-used trade marks. Interviewees applaud his litigation skills, with one person asserting that he is „very thoughtful, strategically thinking and very goal-oriented in his advice on proceedings.“