Paul Charles Michaelis was a Bell Labs researcher in magnetic bubble memory.

Michaelis was born June 18, 1935, in New York City, raised in New Jersey on a Scotch Plains farm, went to high School in Scotch Plain, First worked in Bell Labs, Murray Hill, New Jersey, starting career as a junior draftsman, attended its drafting school. Subsequently, attended NCE Newark College of Engineering, (now "New Jersey Institute of Technology") Received BSEE, BSME and MS physics. After several promotions was promoted to member of Bell Laboratories technical staff and subsequently promoted to technical manager, New Jersey.

Michaelis spent 43 years with Bell Labs, primarily in Murray Hill and Whippany.

He primarily dealt with mechanics, magnetics, fiber optics, electrical circuits, device packaging, acoustic surveillance and vibration reduction. He also worked on underwater surveillance devices and equipment silencing for the United States Navy.

Michaelis was a guest lecturer in magnetics at the Soviet Academy of Sciences USSR in 1972, lecturing at the University of Moscow, University in Tbilisi, Soviet Georgia and the Semiconductor Institute in Leningrad [now St Petersburg].

Michaelis retired from Bell Labs in 1996 as technical manager of the Advanced Vibration Reduction Design Group.

Michaelis received the 1975 IEEE Morris N. Liebmann Memorial Award "for the concept and development of single-walled magnetic domains (magnetic bubbles), and for recognition of their importance to memory technology." The single walled concept was the seminal idea that led to "magnetic bubbles" and charge coupled devices.

• Bonyhard, P.; Geusic, J.; Bobeck, A.; Yu-Ssu Chen; Michaelis, P.; Smith, J., "Magnetic bubble memory chip design", IEEE Transactions on Magnetics, Volume 9, Issue 3, pages 433–436. September 1973.
• Michaelis, P.; Richards, W., "Magnetic bubble mass memory", IEEE Transactions on Magnetics, Volume 11, Issue 1, pages 21–25. January 1975.
• Letter from Paul Michaelis, Reader Feedback, Design News, November 13, 2007^{[permanent dead link]}
• United States Patent 4027298: Magnetic bubble memory bias magnet arrangement
• Paul+Charles+Michaelis United States Patent 4275459: Magnetic Bubble Detector Arrangement
• Paul+Charles+Michaelis United States Patent 3735370: Input for Single-Wall Domain Arrangement
• Paul+Charles+Michaelis United States Patent 4164790: Magnetic Bubble Packaging Arrangement
• Paul+Charles+Michaelis United States Patent 3675298: Micromanipulator for Multilevel Assembly
• Paul+Charles+Michaelis United States Patent 3454939: Magnetic Domain Propagation Device
• Paul+Charles+Michaelis United States Patent 3471819: Thermally Activated Bistable Switch
• Paul+Charles+Michaelis United States Patent 3508222: Readout Implementation for Magnetic Memory
• Paul+Charles+Michaelis United States Patent 3480925: Asynchronous Magnetic Circuit
• Paul+Charles+Michaelis Canadian Patent 2011561: Apparatus and Method for Making Low-loss Permanent Optical Fiber Splices
• Paul+C+Michaelis Canadian Patent 824830: Asynchronous Magnetic Circuit