Our principals have over 54 years of combined experience in the thin film deposition industry. Our core staff has worked together for 18 years and we have extended resources available in affiliate companies.

Paul Diffendaffer (CEO and Director) has 23 years of experience in a variety of coating technologies. He has developed coating machines from concept to full production, including all aspects of qualifying suppliers, managing the development process, and training operators. He was responsible for the entire process from concept to finished product for a project which cost over 6 million dollars and involved many people both here in the US and overseas. He recently managed a decommissioning, transport and recommissioning of a large vacuum sputter roll coater system overseas.

He has hands-on experience in many coating technologies including vacuum deposition of organic and inorganic thin films, UV-curing, ultrasonic and electro-spray coating, sol-gel processes, and a variety of surface treatments that modify adhesion, surface energy, and other surface properties. Paul is trained in both safety and ISO 9000 practices having authored and organized ISO 9001 documents for the vacuum coating R&D section and served as safety officer for Bekaert Specialty Films where he was responsible for determining the safe storage, handling, and disposal procedures for the hazardous materials. He graduated with a B.S. in Engineering and Applied Science from California Institute of Technology.

Dr. John B. Fenn Jr. (a Director and consultant of Venture Technology) is an industrial Leader recognized for technical innovations, corporate management skills, sales and marketing competence. He managed two divisions of major corporations from start-up to profitability and founded two companies that later sold for more than three times original capital investment. He is experienced in negotiations in both domestic and international marketplaces and has a broad technical understanding complemented by financial, marketing and strategic planning skills.

He was elected President of the Society of Vacuum Coaters in 2002, and in 2003 presented the Nathaniel Sugerman Memorial Award for lifetime achievement. He received his Ph.D. in Physical Chemistry from Purdue University, in 1972 and was a Post Doctoral Fellow at the UCLA Chemistry Department.

In 1983 Dr. Fenn co-founded and managed Andus, a high technology vacuum coatings manufacturing company. The company raised over $6 million in venture capital. It very quickly established a worldwide reputation for technical excellence and product quality. Under his direction Andus captured a 10% share of the Far East market for their major product lines. He grew company to $2.5 million annual sales with an EBIT of 10% in five years and negotiated the sale of the company for $18 million after six years.

He was President of a $40+ million subsidiary of Leybold Technologies (a German vacuum capital equipment manufacturer). Dr. Fenn also was Director of Market Development for Courtaulds Performance Films, a $100+ million British company specializing in vacuum coating, solvent coating, laminating and diffusion dyeing of plastic films where he reported directly to the President with responsibility for strategic market, technology and product development. He started a new electronic materials business division with first year's sales of $1 million and had overall responsibility for developing the Far East market activity for company's industrial products division, resulting in $3 million growth in annual sales after first year. As President of Courtaulds Defense Products, Inc. (a wholly owned subsidiary established to market Courtaulds' products and technologies to U.S. military and aerospace contractors) he grew the company's annualized sales to excess of $5 million by second year. He directed an R&D staff of 25 with a $2.6 million budget and a Sales and Marketing group of 17 with a budget of $2 million.

In 1997 Dr. Fenn founded NeoVac whose mission was to design, develop and commercialize thin film products based on vacuum coating processes. The company achieved annualized sales of $3.6 million in its fourth year. NeoVac achieved at least 10% market share worldwide with its first commercial product line of transparent conductive films for use in touch panels and displays. It established a strong presence in the Far East and enjoyed a reputation as a can do company with a high level of quality and customer service. NeoVac was sold to Innovative Specialty Films (which later became Bekaert Specialty Films LLC ) in April of 2001.

Laurie Johansen (CFO, Director) was a scientist at NASA/Caltech’s Jet Propulsion Laboratory in the Planetology Division. She founded a biomedical lens company and coauthored patents which ultimately led to licenses and sales of royalty bearing product in excess of $100 million. Consulting as a patent, merger, and acquisition information searching consultant for the past decade, she has continued to gain a knowledge of legal and intellectual property issues.

James B. Stephens founded Venture Technology Inc. in 1977 to find technologists to solve technical problems for companies resulting in dozens of patents and product improvements. Clients of Venture Technology over the years include: Yamaha Motor Corp. (vehicles, engines, robots and safety items), International Paper (radio devices, printing press and paper making advanced technology), Abbott Laboratories (blood sugar measurements, and other bio-measurement technologies), Medtronic (heart pacers), Stortz Endoscopes (all plastic optics), Westpac (Drip Irrigation), Coast Foundry (ball cocks), Wilson Products (Spectra Welding Curtains), Paino Avocados (freeze drying of avocados), Graining Iron Foundry (bath tub drain plugs), and Patent Attys. Pretty, Schroeder, Bruggerman & Clark (prior art searches). Jim Stephens continued as a consultant for Venture Technology until his death in 2006.


Venture Technology Inc.
560 NE F St. A-421
Grants Pass, Oregon, 97526

Phone: (707) 486-2236

Technical Assistance:



Venture Technology engineers are now available to help you with your thin film deposition requirements. For assistance with your product development projects or to inquire about custom thin film devices or vacuum coating: