Renner Otto

Firm overview. Renner Otto (successor to Renner, Otto, Boisselle & Sklar, LLP) is a Cleveland-headquartered IP boutique with a single U.S. office at 1621 Euclid Avenue, and describes itself as the oldest intellectual-property firm in Cleveland, tracing its roots to 1880 (rennerotto.com). The U.S. News law-firm directory lists roughly 22 lawyers, including 14 partners, and the firm characterizes its structure as a "boutique" full-service IP practice serving prosecution, transactions, and litigation. I found no current AmLaw, Chambers, or Law360 ranking for the firm; the only numerical ranking located (#68 among U.S. patent firms and #1 in Ohio) appears on the firm's own marketing pages and stems from a 2015 IP Nexus survey, so it should be treated as self-reported rather than independently verified.

IP litigation specialty. The tracked docket is concentrated on patent disputes over electro-mechanical consumer products — specifically handheld percussive massage devices, their drive mechanisms, stroke-length controls, and quick-connect attachments. The firm's attorneys hold degrees across mechanical, electrical, chemical, biomedical, and computer engineering, plus materials science and microbiology (rennerotto.com), and its broader patent prosecution client base skews industrial/mechanical (e.g., Panasonic, Sumitomo Electric, Parker-Hannifin, FANUC, Kiekert, per PatentBots data). There is no evidence of a pharma, semiconductor, or standards-essential-patent/Wi-Fi concentration; design patents and trademark/trade-dress work appear alongside utility-patent litigation.

Side preference. The firm works both sides with no apparent NPE/PAE alignment. Of the two tracked appearances, one is plaintiff-side (MerchSource's declaratory-judgment action against Hyper Ice, with Mark C. Johnson as lead counsel) and one defendant-side (Hyper Ice v. Therabody, with associate Sarah L. Boone of record). Recurring clients are operating companies — e.g., MerchSource/Sharper Image defending Hyperice's infringement suits in the Central District of California while bringing its own DJ action — rather than patent assertion entities.

Notable cases. The tracked matters are part of a multi-front dispute among percussion-massager makers Hyperice, MerchSource (Sharper Image), and Therabody in the C.D. Cal. and Delaware. In MerchSource LLC v. Hyper Ice, Inc. (C.D. Cal. No. 8:24-cv-01512), MerchSource seeks a declaration of non-infringement of Hyperice's '082 "massage device having variable stroke length" patent after an Amazon delisting dispute; related consolidated infringement litigation (Hyper Ice v. MerchSource/Joicom, C.D. Cal. Nos. 8:24-cv-00098/00410) reached a Markman hearing in April 2025 with no final judgment located as of this writing. In Hyper Ice, Inc. et al. v. Therabody, Inc., the firm is defense-side. No verdict or merits settlement in either tracked case was verifiable. The firm's litigators have, however, appeared in Federal Circuit appeals documented on the firm's site and in court records, including Dodocase VR, Inc. v. MerchSource, LLC, 767 F. App'x 930 (Fed. Cir. 2019), Apator Miitors ApS v. Kamstrup A/S, 887 F.3d 1293 (Fed. Cir. 2018), and ABB, Inc. v. Cooper Industries, LLC, 635 F.3d 1345 (Fed. Cir. 2011) (per attorney bios, some matters may span prior-firm tenure).

PTAB/IPR practice and key partners. The firm has a genuine but selective PTAB practice tied to district-court defense: Mark C. Johnson and Kyle B. Fleming represented MerchSource as petitioner in IPR2018-00494 (U.S. Patent No. 9,420,075) and companion PGR2018-00019/-00020 against DDC Technology, and MerchSource moved to stay a C.D. Cal. Hyperice suit pending IPR in 2022 (DocketAlarm/PTAB records). No public data places the firm among high-volume IPR filers. The litigation practice is led by partners Mark C. Johnson (enforcement and defense, with PTAB and Federal Circuit experience) and Kyle B. Fleming (litigation co-chair per his firm bio; former IP counsel at Electrolux and a Baker & Hostetler partner, with ITC experience); Sarah L. Boone is the associate litigator on the tracked Therabody matter, and Luis Carrion is listed as managing partner in the U.S. News directory.